angular update to version 12

first step: ng update @angular/core@12 @angular/cli@12

pdb-js/angular.json

@@ -22,7 +22,6 @@
             "main": "src/main.ts",
             "polyfills": "src/polyfills.ts",
             "tsConfig": "tsconfig.app.json",
-            "aot": true,
             "assets": [
               "src/favicon.ico",
               "src/assets"
@@ -31,7 +30,13 @@
               "src/styles.scss",
               "src/custom-theme.scss"
             ],
-            "scripts": []
+            "scripts": [],
+            "vendorChunk": true,
+            "extractLicenses": false,
+            "buildOptimizer": false,
+            "sourceMap": true,
+            "optimization": false,
+            "namedChunks": true
           },
           "configurations": {
             "production": {
@@ -61,7 +66,8 @@
                 }
               ]
             }
-          }
+          },
+          "defaultConfiguration": ""
         },
         "serve": {
           "builder": "@angular-devkit/build-angular:dev-server",

pdb-js/package.json

@@ -5,41 +5,41 @@
     "ng": "ng",
     "start": "ng serve",
     "build": "ng build",
-    "releasebuild": "ng build --prod",
+    "releasebuild": "ng build --configuration production",
     "test": "ng test",
     "lint": "ng lint",
     "e2e": "ng e2e"
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "^11.2.11",
+    "@angular/animations": "^12.1.1",
     "@angular/cdk": "^11.2.10",
-    "@angular/common": "^11.2.11",
-    "@angular/compiler": "^11.2.11",
-    "@angular/core": "^11.2.11",
-    "@angular/forms": "^11.2.11",
+    "@angular/common": "^12.1.1",
+    "@angular/compiler": "^12.1.1",
+    "@angular/core": "^12.1.1",
+    "@angular/forms": "^12.1.1",
     "@angular/material": "^11.2.10",
-    "@angular/platform-browser": "^11.2.11",
-    "@angular/platform-browser-dynamic": "^11.2.11",
-    "@angular/router": "^11.2.11",
+    "@angular/platform-browser": "^12.1.1",
+    "@angular/platform-browser-dynamic": "^12.1.1",
+    "@angular/router": "^12.1.1",
     "moment": "^2.29.1",
     "rxjs": "^6.6.7",
     "rxjs-compat": "^6.6.7",
     "tslib": "^2.2.0",
-    "zone.js": "~0.10.2"
+    "zone.js": "~0.11.4"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^0.1100.7",
-    "@angular/cli": "^11.2.10",
-    "@angular/compiler-cli": "^11.2.11",
-    "@angular/language-service": "^11.2.11",
+    "@angular-devkit/build-angular": "^12.1.1",
+    "@angular/cli": "^12.1.1",
+    "@angular/compiler-cli": "^12.1.1",
+    "@angular/language-service": "^12.1.1",
     "@types/jasmine": "^3.6.9",
     "@types/jasminewd2": "~2.0.8",
     "@types/node": "^12.20.10",
     "codelyzer": "^6.0.0",
     "jasmine-core": "~3.6.0",
     "jasmine-spec-reporter": "~5.0.0",
-    "karma": "~5.1.1",
+    "karma": "~6.3.4",
     "karma-chrome-launcher": "~3.1.0",
     "karma-coverage-istanbul-reporter": "~3.0.2",
     "karma-jasmine": "~4.0.0",
@@ -47,6 +47,6 @@
     "protractor": "~7.0.0",
     "ts-node": "~8.5.4",
     "tslint": "^6.1.0",
-    "typescript": "4.1.5"
+    "typescript": "4.3.5"
   }
 }

pdb-js/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.

pdb-js/src/polyfills.ts

@@ -55,7 +55,7 @@
 /***************************************************************************************************
  * 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.
 
 
 /***************************************************************************************************

pdb-js/src/test.ts

@@ -1,6 +1,6 @@
 // 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,