chore(angular): upgrade test app to Angular 13 (#24621)

angular/test/test-app/src/app/app.module.ts

@@ -65,10 +65,6 @@ import { AlertComponent } from './alert/alert.component';
     ReactiveFormsModule,
     IonicModule.forRoot({ keyboardHeight: 12345 }),
   ],
-  entryComponents: [
-    ModalExampleComponent,
-    NavComponent
-  ],
   providers: [
     { provide: RouteReuseStrategy, useClass: IonicRouteStrategy },
   ],

angular/test/test-app/src/polyfills.ts

@@ -18,16 +18,6 @@
  * BROWSER POLYFILLS
  */
 
-/** IE10 and IE11 requires the following for NgClass support on SVG elements */
-// import 'classlist.js';  // Run `npm install --save classlist.js`.
-
-/**
- * Web Animations `@angular/platform-browser/animations`
- * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
- * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
- */
-// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
-
 /**
  * By default, zone.js will patch all possible macroTask and DomEvents
  * user can disable parts of macroTask/DomEvents patch by setting following flags