diff --git a/front/package-lock.json b/front/package-lock.json
index 29327c7..d7b9365 100644
--- a/front/package-lock.json
+++ b/front/package-lock.json
@@ -2554,6 +2554,14 @@
         "qs": "6.7.0",
         "raw-body": "2.4.0",
         "type-is": "~1.6.17"
+      },
+      "dependencies": {
+        "qs": {
+          "version": "6.7.0",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
+          "integrity": "sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==",
+          "dev": true
+        }
       }
     },
     "bonjour": {
@@ -5029,6 +5037,12 @@
         "vary": "~1.1.2"
       },
       "dependencies": {
+        "qs": {
+          "version": "6.7.0",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
+          "integrity": "sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==",
+          "dev": true
+        },
         "safe-buffer": {
           "version": "5.1.2",
           "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
@@ -5515,7 +5529,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -5536,12 +5551,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -5556,17 +5573,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -5683,7 +5703,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -5695,6 +5716,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -5709,6 +5731,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -5716,12 +5739,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -5740,6 +5765,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -5820,7 +5846,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -5832,6 +5859,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -5917,7 +5945,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -5953,6 +5982,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -5972,6 +6002,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -6015,12 +6046,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -10719,9 +10752,9 @@
       "dev": true
     },
     "qs": {
-      "version": "6.7.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
-      "integrity": "sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.3.tgz",
+      "integrity": "sha512-qxXIEh4pCGfHICj1mAJQ2/2XVZkjCDTcEgfoSQxc/fYivUZxTkk7L3bDBJSoNrEzXI17oUO5Dp07ktqE5KzczA==",
       "dev": true
     },
     "query-string": {
@@ -11208,12 +11241,6 @@
           "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
           "dev": true
         },
-        "qs": {
-          "version": "6.5.2",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-          "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==",
-          "dev": true
-        },
         "tough-cookie": {
           "version": "2.4.3",
           "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
diff --git a/front/yarn.lock b/front/yarn.lock
index d0ecc63..4c3f84f 100644
--- a/front/yarn.lock
+++ b/front/yarn.lock
@@ -671,6 +671,10 @@
   version "23.3.14"
   resolved "https://registry.npm.taobao.org/@types/jest/download/@types/jest-23.3.14.tgz#37daaf78069e7948520474c87b80092ea912520a"
 
+"@types/jwt-decode@^2.2.1":
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/@types/jwt-decode/-/jwt-decode-2.2.1.tgz#afdf5c527fcfccbd4009b5fd02d1e18241f2d2f2"
+
 "@types/minimatch@*":
   version "3.0.3"
   resolved "https://registry.npm.taobao.org/@types/minimatch/download/@types/minimatch-3.0.3.tgz?cache=0&sync_timestamp=1567533638812&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40types%2Fminimatch%2Fdownload%2F%40types%2Fminimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
@@ -4887,6 +4891,10 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+jwt-decode@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/jwt-decode/-/jwt-decode-2.2.0.tgz#7d86bd56679f58ce6a84704a657dd392bba81a79"
+
 killable@^1.0.1:
   version "1.0.1"
   resolved "https://registry.npm.taobao.org/killable/download/killable-1.0.1.tgz#4c8ce441187a061c7474fb87ca08e2a638194892"
@@ -6592,8 +6600,8 @@ qs@6.7.0:
   resolved "https://registry.npm.taobao.org/qs/download/qs-6.7.0.tgz?cache=0&sync_timestamp=1569207136481&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fqs%2Fdownload%2Fqs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
 
 qs@~6.5.2:
-  version "6.5.2"
-  resolved "https://registry.npm.taobao.org/qs/download/qs-6.5.2.tgz?cache=0&sync_timestamp=1569207136481&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fqs%2Fdownload%2Fqs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+  version "6.5.3"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.3.tgz#3aeeffc91967ef6e35c0e488ef46fb296ab76aad"
 
 query-string@^5.0.1:
   version "5.1.1"
@@ -8086,10 +8094,14 @@ vm-browserify@^1.0.1:
   version "1.1.0"
   resolved "https://registry.npm.taobao.org/vm-browserify/download/vm-browserify-1.1.0.tgz#bd76d6a23323e2ca8ffa12028dc04559c75f9019"
 
-vue-class-component@^7.0.1, vue-class-component@^7.0.2:
+vue-class-component@^7.0.1:
   version "7.1.0"
   resolved "https://registry.npm.taobao.org/vue-class-component/download/vue-class-component-7.1.0.tgz#b33efcb10e17236d684f70b1e96f1946ec793e87"
 
+vue-class-component@^7.1.0:
+  version "7.2.6"
+  resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-7.2.6.tgz#8471e037b8e4762f5a464686e19e5afc708502e4"
+
 vue-hot-reload-api@^2.3.0:
   version "2.3.4"
   resolved "https://registry.npm.taobao.org/vue-hot-reload-api/download/vue-hot-reload-api-2.3.4.tgz#532955cc1eb208a3d990b3a9f9a70574657e08f2"
@@ -8151,6 +8163,10 @@ vue@^2.6.10:
   version "2.6.10"
   resolved "https://registry.npm.taobao.org/vue/download/vue-2.6.10.tgz#a72b1a42a4d82a721ea438d1b6bf55e66195c637"
 
+vuex-class@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/vuex-class/-/vuex-class-0.3.2.tgz#c7e96a076c1682137d4d23a8dcfdc63f220e17a8"
+
 vuex@^3.0.1:
   version "3.1.1"
   resolved "https://registry.npm.taobao.org/vuex/download/vuex-3.1.1.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fvuex%2Fdownload%2Fvuex-3.1.1.tgz#0c264bfe30cdbccf96ab9db3177d211828a5910e"