Polished layout and icons

lib/screen/pages/talk/chatBubble.dart

@@ -185,7 +185,7 @@ class _ChatBubbleState extends State<ChatBubble> {
               Visibility(
                 visible: !widget.isSender && widget.chatData.type != GetRoomResponseObjectConversationType.oneToOne,
                 child: ListTile(
-                  leading: const Icon(Icons.person),
+                  leading: const Icon(Icons.sms_outlined),
                   title: Text("Private Nachricht an '${widget.bubbleData.actorDisplayName}'"),
                   onTap: () => {},
                 ),