Revert side-nav-auth app.spec.ts to original state

Co-authored-by: Hristo313 <57346540+Hristo313@users.noreply.github.com>

Author: Copilot

packages/igx-templates/igx-ts/projects/side-nav-auth/files/src/app/app.spec.ts

@@ -1,6 +1,7 @@
 import { TestBed } from '@angular/core/testing';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import { RouterModule } from '@angular/router';
+import { IgxLayoutModule, IgxNavbarModule, IgxNavigationDrawerModule, IgxRippleModule } from 'igniteui-angular';
 import { App } from './app';
 import { AuthenticationModule } from './authentication';
 
@@ -10,7 +11,11 @@ describe('App', () => {
       imports: [
         NoopAnimationsModule,
         RouterModule.forRoot([]),
+        IgxNavigationDrawerModule,
         AuthenticationModule,
+        IgxNavbarModule,
+        IgxLayoutModule,
+        IgxRippleModule,
         App
       ]
     }).compileComponents();