tiny UI imrovments

client/src/app/chat-page.component.ts

@@ -140,6 +140,10 @@ export class ChatPageComponent {
     return 'offline';
   }
 
+  canReconnectWebRtc(): boolean {
+    return this.indicatorTone(this.webRtcState()) === 'offline';
+  }
+
   async switchPeer(peerId: string): Promise<void> {
     if (!peerId || peerId === this.peerId()) {
       return;