feat(core(js)): improve Google Authenticator on login page, add QR code

Fixes #5038

UI/WebServerResources/package.json

@@ -15,6 +15,7 @@
     "file-saver": "latest",
     "lodash": "^4.17.15",
     "ng-sortable": "1.3.7"
+    "qrcodejs": "^1.0.0"
   },
   "devDependencies": {
     "autoprefixer": "^9.7.6",
@@ -31,7 +32,6 @@
     "grunt-sass": "^3.1.0",
     "kss": "^3.0.1",
     "node-sass": "^4.14.1",
-    "qrcodejs": "^1.0.0",
     "time-grunt": "latest"
   },
   "browserslist": [