clean repo for angular update to 12

mc_frontend/package.json

@@ -17,7 +17,7 @@
   },
   "private": true,
   "dependencies": {
-    "@angular-builders/custom-webpack": "^9.0.0",
+    "@angular-builders/custom-webpack": "11",
     "@angular/animations": "^11.2.14",
     "@angular/cdk": "^11.2.13",
     "@angular/common": "^11.2.14",
@@ -33,7 +33,7 @@
     "@ionic/angular": "^5.0.4",
     "@ionic/core": "^5.0.4",
     "@ionic/storage": "^2.2.0",
-    "@ngtools/webpack": "^10.2.4",
+    "@ngtools/webpack": "11",
     "@ngx-translate/core": "^11.0.1",
     "@ngx-translate/http-loader": "^4.0.0",
     "cordova-browser": "5.0.4",
@@ -93,4 +93,4 @@
       "browser"
     ]
   }
-}
\ No newline at end of file
+}