update vue cli, add hash routing

Author: shoudaos

package.json

@@ -38,9 +38,9 @@
     "webpack-cli": "^3.1.2"
   },
   "devDependencies": {
-    "@vue/cli-plugin-babel": "^3.0.5",
-    "@vue/cli-plugin-eslint": "^3.0.5",
-    "@vue/cli-service": "^3.0.5",
+    "@vue/cli-plugin-babel": "^3.12.0",
+    "@vue/cli-plugin-eslint": "^3.12.0",
+    "@vue/cli-service": "^3.12.0",
     "core-js": "^2.6.5",
     "vue-template-compiler": "^2.5.17"
   },

src/Routes.js

@@ -27,7 +27,6 @@ import NotificationsPage from '@/pages/Notifications/Notifications';
 Vue.use(Router);
 
 export default new Router({
-  mode: 'history',
   routes: [
     {
       path: '/login',