add grade

src/routes/panel/dashboard/app/app.component.html

@@ -13,7 +13,7 @@
   <div class="selector" *ngIf="uid == 'tvu'">
     <mat-form-field appearance="outline">
       <mat-label>انتخاب مرکز / دانشگاه</mat-label>
-      <mat-select [(ngModel)]="namespace" multiple>
+      <mat-select [(ngModel)]="namespace" multiple (selectionChange)="subscribe()">
         <mat-optgroup
           *ngFor="let group of univeristygroups"
           [label]="group.name"