Change demo-id

src/app/join-room/join-room.component.html

@@ -7,7 +7,7 @@
         <mat-error *ngIf="roomFormControl.hasError('required')">Please enter a room-id.</mat-error>
         <mat-error *ngIf="roomFormControl.hasError('minlength')">A room-id has exactly 8 digits.</mat-error>
       </mat-form-field>
-      <button mat-fab color="primary" type="submit">
+      <button mat-fab color="primary">
         <mat-icon>send</mat-icon>
       </button>
     </div>

src/app/join-room/join-room.component.ts

@@ -22,7 +22,7 @@ export class JoinErrorStateMatcher implements ErrorStateMatcher {
 export class JoinRoomComponent implements OnInit {
 
   room: Room;
-  demoId = '17703069';
+  demoId = '82458028';
 
   roomFormControl = new FormControl('', [Validators.required, Validators.minLength(8)]);