Navigate to new route when entering question carousel

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

@@ -20,7 +20,7 @@
         <button mat-icon-button color="primary" matTooltip="Give feedback">
           <mat-icon>feedback</mat-icon>
         </button>
-        <button mat-button color="primary" matTooltip="Join question round">
+        <button mat-button color="primary" matTooltip="Join question round" routerLink="/participant/room/{{ room.id }}/questions">
           Questions
         </button>
         <button mat-button color="primary" matTooltip="Start personal question round">