Update ChatService to initialize totalMessages to 1; adjust chat-info styles to use bold font for message count.

frontend/src/app/pages/altitude/chat/components/chat-info/chat-info.component.scss

@@ -15,6 +15,7 @@
   padding-left: 10px;
 
   .message-count {
+    font-family: 'opensans-bold', sans-serif;
     padding-left: 5px;
   }
 }

frontend/src/app/pages/altitude/chat/service/chat.service.ts

@@ -107,7 +107,7 @@ export class ChatService implements OnDestroy {
           name: message.channelName!,
           type: message.channelType!,
           unreadMessages: 0,
-          totalMessages: 0
+          totalMessages: 1
         }]);
       } else {
         found.totalMessages++;