diff --git a/ratel/frontend/package-lock.json b/ratel/frontend/package-lock.json
index c1c8966..501bbfc 100644
--- a/ratel/frontend/package-lock.json
+++ b/ratel/frontend/package-lock.json
@@ -1172,6 +1172,68 @@
             "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz",
             "integrity": "sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw=="
         },
+        "@redux-saga/core": {
+            "version": "1.1.3",
+            "resolved": "https://registry.npmjs.org/@redux-saga/core/-/core-1.1.3.tgz",
+            "integrity": "sha512-8tInBftak8TPzE6X13ABmEtRJGjtK17w7VUs7qV17S8hCO5S3+aUTWZ/DBsBJPdE8Z5jOPwYALyvofgq1Ws+kg==",
+            "requires": {
+                "@babel/runtime": "^7.6.3",
+                "@redux-saga/deferred": "^1.1.2",
+                "@redux-saga/delay-p": "^1.1.2",
+                "@redux-saga/is": "^1.1.2",
+                "@redux-saga/symbols": "^1.1.2",
+                "@redux-saga/types": "^1.1.0",
+                "redux": "^4.0.4",
+                "typescript-tuple": "^2.2.1"
+            },
+            "dependencies": {
+                "@babel/runtime": {
+                    "version": "7.17.2",
+                    "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.17.2.tgz",
+                    "integrity": "sha512-hzeyJyMA1YGdJTuWU0e/j4wKXrU4OMFvY2MSlaI9B7VQb0r5cxTE3EAIS2Q7Tn2RIcDkRvTA/v2JsAEhxe99uw==",
+                    "requires": {
+                        "regenerator-runtime": "^0.13.4"
+                    }
+                },
+                "regenerator-runtime": {
+                    "version": "0.13.9",
+                    "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.9.tgz",
+                    "integrity": "sha512-p3VT+cOEgxFsRRA9X4lkI1E+k2/CtnKtU4gcxyaCUreilL/vqI6CdZ3wxVUx3UOUg+gnUOQQcRI7BmSI656MYA=="
+                }
+            }
+        },
+        "@redux-saga/deferred": {
+            "version": "1.1.2",
+            "resolved": "https://registry.npmjs.org/@redux-saga/deferred/-/deferred-1.1.2.tgz",
+            "integrity": "sha512-908rDLHFN2UUzt2jb4uOzj6afpjgJe3MjICaUNO3bvkV/kN/cNeI9PMr8BsFXB/MR8WTAZQq/PlTq8Kww3TBSQ=="
+        },
+        "@redux-saga/delay-p": {
+            "version": "1.1.2",
+            "resolved": "https://registry.npmjs.org/@redux-saga/delay-p/-/delay-p-1.1.2.tgz",
+            "integrity": "sha512-ojc+1IoC6OP65Ts5+ZHbEYdrohmIw1j9P7HS9MOJezqMYtCDgpkoqB5enAAZrNtnbSL6gVCWPHaoaTY5KeO0/g==",
+            "requires": {
+                "@redux-saga/symbols": "^1.1.2"
+            }
+        },
+        "@redux-saga/is": {
+            "version": "1.1.2",
+            "resolved": "https://registry.npmjs.org/@redux-saga/is/-/is-1.1.2.tgz",
+            "integrity": "sha512-OLbunKVsCVNTKEf2cH4TYyNbbPgvmZ52iaxBD4I1fTif4+MTXMa4/Z07L83zW/hTCXwpSZvXogqMqLfex2Tg6w==",
+            "requires": {
+                "@redux-saga/symbols": "^1.1.2",
+                "@redux-saga/types": "^1.1.0"
+            }
+        },
+        "@redux-saga/symbols": {
+            "version": "1.1.2",
+            "resolved": "https://registry.npmjs.org/@redux-saga/symbols/-/symbols-1.1.2.tgz",
+            "integrity": "sha512-EfdGnF423glv3uMwLsGAtE6bg+R9MdqlHEzExnfagXPrIiuxwr3bdiAwz3gi+PsrQ3yBlaBpfGLtDG8rf3LgQQ=="
+        },
+        "@redux-saga/types": {
+            "version": "1.1.0",
+            "resolved": "https://registry.npmjs.org/@redux-saga/types/-/types-1.1.0.tgz",
+            "integrity": "sha512-afmTuJrylUU/0OtqzaRkbyYFFNgCF73Bvel/sw90pvGrWIZ+vyoIJqA6eMSoA6+nb443kTmulmBtC9NerXboNg=="
+        },
         "@svgr/babel-plugin-add-jsx-attribute": {
             "version": "4.2.0",
             "resolved": "https://registry.npmjs.org/@svgr/babel-plugin-add-jsx-attribute/-/babel-plugin-add-jsx-attribute-4.2.0.tgz",
@@ -1660,14 +1722,21 @@
             }
         },
         "ajv": {
-            "version": "6.10.2",
-            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
-            "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+            "version": "6.12.6",
+            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+            "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
             "requires": {
-                "fast-deep-equal": "^2.0.1",
+                "fast-deep-equal": "^3.1.1",
                 "fast-json-stable-stringify": "^2.0.0",
                 "json-schema-traverse": "^0.4.1",
                 "uri-js": "^4.2.2"
+            },
+            "dependencies": {
+                "fast-deep-equal": {
+                    "version": "3.1.3",
+                    "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+                    "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
+                }
             }
         },
         "ajv-errors": {
@@ -3596,6 +3665,17 @@
             "resolved": "https://registry.npmjs.org/connect-history-api-fallback/-/connect-history-api-fallback-1.6.0.tgz",
             "integrity": "sha512-e54B99q/OUoH64zYYRf3HBP5z24G38h5D3qXu23JGRoigpX5Ss4r9ZnDk3g0Z8uQC2x2lPaJ+UlWBc1ZWBWdLg=="
         },
+        "connected-react-router": {
+            "version": "6.9.2",
+            "resolved": "https://registry.npmjs.org/connected-react-router/-/connected-react-router-6.9.2.tgz",
+            "integrity": "sha512-bE8kNBiZv9Mivp7pYn9JvLH5ItTjLl45kk1/Vha0rmAK9I/ETb5JPJrAm0h2KCG9qLfv7vqU3Jo4UUDo0oJnQg==",
+            "requires": {
+                "immutable": "^3.8.1 || ^4.0.0",
+                "lodash.isequalwith": "^4.4.0",
+                "prop-types": "^15.7.2",
+                "seamless-immutable": "^7.1.3"
+            }
+        },
         "console-browserify": {
             "version": "1.2.0",
             "resolved": "https://registry.npmjs.org/console-browserify/-/console-browserify-1.2.0.tgz",
@@ -3729,6 +3809,58 @@
                 "sha.js": "^2.4.8"
             }
         },
+        "cross-env": {
+            "version": "6.0.3",
+            "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-6.0.3.tgz",
+            "integrity": "sha512-+KqxF6LCvfhWvADcDPqo64yVIB31gv/jQulX2NGzKS/g3GEVz6/pt4wjHFtFWsHMddebWD/sDthJemzM4MaAag==",
+            "dev": true,
+            "requires": {
+                "cross-spawn": "^7.0.0"
+            },
+            "dependencies": {
+                "cross-spawn": {
+                    "version": "7.0.3",
+                    "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
+                    "integrity": "sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==",
+                    "dev": true,
+                    "requires": {
+                        "path-key": "^3.1.0",
+                        "shebang-command": "^2.0.0",
+                        "which": "^2.0.1"
+                    }
+                },
+                "path-key": {
+                    "version": "3.1.1",
+                    "resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
+                    "integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==",
+                    "dev": true
+                },
+                "shebang-command": {
+                    "version": "2.0.0",
+                    "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
+                    "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
+                    "dev": true,
+                    "requires": {
+                        "shebang-regex": "^3.0.0"
+                    }
+                },
+                "shebang-regex": {
+                    "version": "3.0.0",
+                    "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
+                    "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
+                    "dev": true
+                },
+                "which": {
+                    "version": "2.0.2",
+                    "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+                    "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+                    "dev": true,
+                    "requires": {
+                        "isexe": "^2.0.0"
+                    }
+                }
+            }
+        },
         "cross-spawn": {
             "version": "6.0.5",
             "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
@@ -5383,11 +5515,6 @@
             "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
             "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
         },
-        "fast-deep-equal": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-            "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
-        },
         "fast-glob": {
             "version": "2.2.7",
             "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-2.2.7.tgz",
@@ -6419,6 +6546,12 @@
             "resolved": "https://registry.npmjs.org/immer/-/immer-1.10.0.tgz",
             "integrity": "sha512-O3sR1/opvCDGLEVcvrGTMtLac8GJ5IwZC4puPrLuRj3l7ICKvkmA0vGuU9OW8mV9WIBRnaxp5GJh9IEAaNOoYg=="
         },
+        "immutable": {
+            "version": "4.0.0",
+            "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.0.0.tgz",
+            "integrity": "sha512-zIE9hX70qew5qTUjSS7wi1iwj/l7+m54KWU247nhM3v806UdGj1yDndXj+IOYxxtW9zyLI+xqFNZjTuDaLUqFw==",
+            "optional": true
+        },
         "import-cwd": {
             "version": "2.1.0",
             "resolved": "https://registry.npmjs.org/import-cwd/-/import-cwd-2.1.0.tgz",
@@ -8204,6 +8337,11 @@
             "resolved": "https://registry.npmjs.org/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz",
             "integrity": "sha1-DM8tiRZq8Ds2Y8eWU4t1rG4RTZ0="
         },
+        "lodash.isequalwith": {
+            "version": "4.4.0",
+            "resolved": "https://registry.npmjs.org/lodash.isequalwith/-/lodash.isequalwith-4.4.0.tgz",
+            "integrity": "sha1-Jmcm3dUo+FTyH06pigZWBuD7xrA="
+        },
         "lodash.memoize": {
             "version": "4.1.2",
             "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
@@ -11158,6 +11296,14 @@
                 "deep-diff": "^0.3.5"
             }
         },
+        "redux-saga": {
+            "version": "1.1.3",
+            "resolved": "https://registry.npmjs.org/redux-saga/-/redux-saga-1.1.3.tgz",
+            "integrity": "sha512-RkSn/z0mwaSa5/xH/hQLo8gNf4tlvT18qXDNvedihLcfzh+jMchDgaariQoehCpgRltEm4zHKJyINEz6aqswTw==",
+            "requires": {
+                "@redux-saga/core": "^1.1.3"
+            }
+        },
         "regenerate": {
             "version": "1.4.0",
             "resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.4.0.tgz",
@@ -11925,6 +12071,12 @@
                 }
             }
         },
+        "seamless-immutable": {
+            "version": "7.1.4",
+            "resolved": "https://registry.npmjs.org/seamless-immutable/-/seamless-immutable-7.1.4.tgz",
+            "integrity": "sha512-XiUO1QP4ki4E2PHegiGAlu6r82o5A+6tRh7IkGGTVg/h+UoeX4nFBeCGPOhb4CYjvkqsfm/TUtvOMYC1xmV30A==",
+            "optional": true
+        },
         "select-hose": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/select-hose/-/select-hose-2.0.0.tgz",
@@ -13190,6 +13342,27 @@
             "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
             "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
         },
+        "typescript-compare": {
+            "version": "0.0.2",
+            "resolved": "https://registry.npmjs.org/typescript-compare/-/typescript-compare-0.0.2.tgz",
+            "integrity": "sha512-8ja4j7pMHkfLJQO2/8tut7ub+J3Lw2S3061eJLFQcvs3tsmJKp8KG5NtpLn7KcY2w08edF74BSVN7qJS0U6oHA==",
+            "requires": {
+                "typescript-logic": "^0.0.0"
+            }
+        },
+        "typescript-logic": {
+            "version": "0.0.0",
+            "resolved": "https://registry.npmjs.org/typescript-logic/-/typescript-logic-0.0.0.tgz",
+            "integrity": "sha512-zXFars5LUkI3zP492ls0VskH3TtdeHCqu0i7/duGt60i5IGPIpAHE/DWo5FqJ6EjQ15YKXrt+AETjv60Dat34Q=="
+        },
+        "typescript-tuple": {
+            "version": "2.2.1",
+            "resolved": "https://registry.npmjs.org/typescript-tuple/-/typescript-tuple-2.2.1.tgz",
+            "integrity": "sha512-Zcr0lbt8z5ZdEzERHAMAniTiIKerFCMgd7yjq1fPnDJ43et/k9twIFQMUYff9k5oXcsQ0WpvFcgzK2ZKASoW6Q==",
+            "requires": {
+                "typescript-compare": "^0.0.2"
+            }
+        },
         "uglify-js": {
             "version": "3.4.10",
             "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.10.tgz",
diff --git a/ratel/frontend/yarn.lock b/ratel/frontend/yarn.lock
index 57ada2d..8364a30 100644
--- a/ratel/frontend/yarn.lock
+++ b/ratel/frontend/yarn.lock
@@ -1617,11 +1617,11 @@ ajv-keywords@^3.1.0, ajv-keywords@^3.4.1:
   integrity sha512-RO1ibKvd27e6FEShVFfPALuHI3WjSVNeK5FIsmme/LYRNxjKuNj+Dt7bucLa6NdSv3JcVTyMlm9kGR84z1XpaQ==
 
 ajv@^6.1.0, ajv@^6.10.0, ajv@^6.10.2, ajv@^6.5.5:
-  version "6.10.2"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.10.2.tgz#d3cea04d6b017b2894ad69040fec8b623eb4bd52"
-  integrity sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==
+  version "6.12.6"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.12.6.tgz#baf5a62e802b07d977034586f8c3baf5adf26df4"
+  integrity sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==
   dependencies:
-    fast-deep-equal "^2.0.1"
+    fast-deep-equal "^3.1.1"
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
@@ -4052,10 +4052,10 @@ extsprintf@^1.2.0:
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
   integrity sha1-4mifjzVvrWLMplo6kcXfX5VRaS8=
 
-fast-deep-equal@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz#7b05218ddf9667bf7f370bf7fdb2cb15fdd0aa49"
-  integrity sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=
+fast-deep-equal@^3.1.1:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"
+  integrity sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==
 
 fast-glob@^2.0.2:
   version "2.2.7"
@@ -4070,9 +4070,9 @@ fast-glob@^2.0.2:
     micromatch "^3.1.10"
 
 fast-json-stable-stringify@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
-  integrity sha1-1RQsDK7msRifh9OnYREGT4bIu/I=
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz#874bf69c6f404c2b5d99c481341399fd55892633"
+  integrity sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw==
 
 fast-levenshtein@~2.0.4:
   version "2.0.6"
@@ -10218,9 +10218,9 @@ upper-case@^1.1.1:
   integrity sha1-9rRQHC7EzdJrp4vnIilh3ndiFZg=
 
 uri-js@^4.2.2:
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/uri-js/-/uri-js-4.2.2.tgz#94c540e1ff772956e2299507c010aea6c8838eb0"
-  integrity sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/uri-js/-/uri-js-4.4.1.tgz#9b1a52595225859e55f669d928f88c6c57f2a77e"
+  integrity sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==
   dependencies:
     punycode "^2.1.0"