remove unused css files and styleUrl properties from components (#48)

Reviewed-on: http://git.simonis.lol/angular/ems-frontend/pulls/48
Co-authored-by: Jan-Marlon Leibl <jleibl@proton.me>
Co-committed-by: Jan-Marlon Leibl <jleibl@proton.me>

src/app/employee/delete/delete.component.ts

@@ -24,7 +24,6 @@ import EmployeeApiService from '../../services/employee-api.service';
   ],
   templateUrl: './delete.component.html',
   standalone: true,
-  styleUrl: './delete.component.css',
 })
 export class DeleteComponent {
   private apiService: EmployeeApiService = inject(EmployeeApiService);