diff --git a/front/package-lock.json b/front/package-lock.json
index 29327c7..3ffb936 100644
--- a/front/package-lock.json
+++ b/front/package-lock.json
@@ -5515,7 +5515,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -5536,12 +5537,14 @@
         "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 +5559,20 @@
         "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 +5689,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -5695,6 +5702,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -5709,6 +5717,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -5716,12 +5725,14 @@
         "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 +5751,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -5820,7 +5832,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -5832,6 +5845,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -5917,7 +5931,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -5953,6 +5968,7 @@
           "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 +5988,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -6015,12 +6032,14 @@
         "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
         }
       }
     },
@@ -11504,9 +11523,9 @@
           "dev": true
         },
         "y18n": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-          "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+          "version": "3.2.2",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.2.tgz",
+          "integrity": "sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ==",
           "dev": true
         },
         "yargs": {
@@ -13991,9 +14010,9 @@
       "dev": true
     },
     "y18n": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
-      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.1.tgz",
+      "integrity": "sha512-wNcy4NvjMYL8gogWWYAO7ZFWFfHcbdbE57tZO8e4cbpj8tfUcwrwqSl3ad8HxpYWCdXcJUCeKKZS62Av1affwQ==",
       "dev": true
     },
     "yallist": {
@@ -14029,9 +14048,9 @@
           "dev": true
         },
         "y18n": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-          "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+          "version": "3.2.2",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.2.tgz",
+          "integrity": "sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ==",
           "dev": true
         },
         "yargs-parser": {
diff --git a/front/yarn.lock b/front/yarn.lock
index d0ecc63..3977b6c 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"
@@ -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"
@@ -8439,8 +8455,8 @@ xtend@^4.0.0, xtend@~4.0.1:
   resolved "https://registry.npm.taobao.org/xtend/download/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
 
 y18n@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.npm.taobao.org/y18n/download/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.2.tgz#85c901bd6470ce71fc4bb723ad209b70f7f28696"
 
 "y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
   version "4.0.0"