<ion-item-group>
  <ion-item-divider>
    <ion-label>{{groupName}}</ion-label>
  </ion-item-divider>

  <span *ngFor="let channel of channels | async">
    <ion-item [routerLink]="['channel', channel.name]" (click)="menu?.toggle(true)">
      {{channel.name}}
    </ion-item>
  </span>
</ion-item-group>
