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/qualification/delete/delete.component.ts

@@ -25,7 +25,6 @@ import { MatIcon } from '@angular/material/icon';
   ],
   templateUrl: './delete.component.html',
   standalone: true,
-  styleUrl: './delete.component.css',
 })
 export class DeleteComponent {
   public id: number = inject(MAT_DIALOG_DATA);