clean repo for angular update to 12

mc_frontend/package.json

@@ -18,15 +18,15 @@
   "private": true,
   "dependencies": {
     "@angular-builders/custom-webpack": "11",
-    "@angular/animations": "^11.2.14",
+    "@angular/animations": "^12.2.17",
     "@angular/cdk": "^11.2.13",
-    "@angular/common": "^11.2.14",
-    "@angular/core": "^11.2.14",
-    "@angular/forms": "^11.2.14",
+    "@angular/common": "^12.2.17",
+    "@angular/core": "^12.2.17",
+    "@angular/forms": "^12.2.17",
     "@angular/material": "^11.2.13",
-    "@angular/platform-browser": "^11.2.14",
-    "@angular/platform-browser-dynamic": "^11.2.14",
-    "@angular/router": "^11.2.14",
+    "@angular/platform-browser": "^12.2.17",
+    "@angular/platform-browser-dynamic": "^12.2.17",
+    "@angular/router": "^12.2.17",
     "@ionic-native/core": "^5.21.6",
     "@ionic-native/splash-screen": "^5.21.6",
     "@ionic-native/status-bar": "^5.21.6",
@@ -50,17 +50,17 @@
     "toposort-class": "^1.0.1",
     "tslib": "^2.0.0",
     "webpack": "^4.42.0",
-    "zone.js": "^0.11.8"
+    "zone.js": "~0.11.4"
   },
   "devDependencies": {
-    "@angular-devkit/architect": "^0.1102.19",
-    "@angular-devkit/build-angular": "^0.1102.19",
-    "@angular-devkit/core": "^11.2.19",
-    "@angular-devkit/schematics": "^11.2.19",
-    "@angular/cli": "^11.2.19",
-    "@angular/compiler": "^11.2.14",
-    "@angular/compiler-cli": "^11.2.14",
-    "@angular/language-service": "^11.2.14",
+    "@angular-devkit/architect": "^0.1202.18",
+    "@angular-devkit/build-angular": "^12.2.18",
+    "@angular-devkit/core": "^12.2.18",
+    "@angular-devkit/schematics": "^12.2.18",
+    "@angular/cli": "^12.2.18",
+    "@angular/compiler": "^12.2.17",
+    "@angular/compiler-cli": "^12.2.17",
+    "@angular/language-service": "^12.2.17",
     "@ionic/angular-toolkit": "^2.2.0",
     "@types/jasmine": "^3.5.9",
     "@types/jasminewd2": "^2.0.8",
@@ -93,4 +93,4 @@
       "browser"
     ]
   }
-}
+}
\ No newline at end of file

mc_frontend/src/environments/environment.ts

@@ -13,4 +13,4 @@ export const environment = {
  * This import should be commented out in production mode because it will have a negative impact
  * on performance if an error is thrown.
  */
-// import 'zone.js/dist/zone-error';  // Included with Angular CLI.
+// import 'zone.js/plugins/zone-error';  // Included with Angular CLI.

mc_frontend/src/polyfills.ts

@@ -65,7 +65,7 @@ import './zone-flags.ts';
  * Zone JS is required by default for Angular itself.
  */
 
-import 'zone.js/dist/zone';  // Included with Angular CLI.
+import 'zone.js';  // Included with Angular CLI.
 
 
 /***************************************************************************************************

mc_frontend/src/test.ts

 // This file is required by karma.conf.js and loads recursively all the .spec and framework files
 
-import 'zone.js/dist/zone-testing';
+import 'zone.js/testing';
 import { getTestBed } from '@angular/core/testing';
 import {
   BrowserDynamicTestingModule,