clean repo for angular update to 12

mc_frontend/package.json

@@ -18,15 +18,15 @@
   "private": true,
   "dependencies": {
     "@angular-builders/custom-webpack": "^9.0.0",
-    "@angular/animations": "^12.2.17",
+    "@angular/animations": "^11.2.14",
     "@angular/cdk": "^11.2.13",
-    "@angular/common": "^12.2.17",
-    "@angular/core": "^12.2.17",
-    "@angular/forms": "^12.2.17",
+    "@angular/common": "^11.2.14",
+    "@angular/core": "^11.2.14",
+    "@angular/forms": "^11.2.14",
     "@angular/material": "^11.2.13",
-    "@angular/platform-browser": "^12.2.17",
-    "@angular/platform-browser-dynamic": "^12.2.17",
-    "@angular/router": "^12.2.17",
+    "@angular/platform-browser": "^11.2.14",
+    "@angular/platform-browser-dynamic": "^11.2.14",
+    "@angular/router": "^11.2.14",
     "@ionic-native/core": "^5.21.6",
     "@ionic-native/splash-screen": "^5.21.6",
     "@ionic-native/status-bar": "^5.21.6",
@@ -58,9 +58,9 @@
     "@angular-devkit/core": "^11.2.19",
     "@angular-devkit/schematics": "^11.2.19",
     "@angular/cli": "^11.2.19",
-    "@angular/compiler": "^12.2.17",
-    "@angular/compiler-cli": "^12.2.17",
-    "@angular/language-service": "^12.2.17",
+    "@angular/compiler": "^11.2.14",
+    "@angular/compiler-cli": "^11.2.14",
+    "@angular/language-service": "^11.2.14",
     "@ionic/angular-toolkit": "^2.2.0",
     "@types/jasmine": "^3.5.9",
     "@types/jasminewd2": "^2.0.8",