message: Fix deleted course still visible
diff: @@ -174,11 +174,12 @@ export class GeneralTabComponent implements OnInit {
  deleteCourse() {
  this.dialogService.confirmDelete('course', this.courseOb.name)
  - .subscribe(res => {
  - if (res) {
  - this.courseService.deleteItem(this.courseOb);
  - this.router.navigate(['/']);
  + .subscribe(async res => {
  + if (!res) {
  + return;
  }
  + await this.courseService.deleteItem(this.courseOb);
  + await this.router.navigate(['/']);
  });
  }
  }
  