fix part screen voice input and adaption

lib/screens/part_screen.dart

@@ -24,7 +24,7 @@ class _PartScreenState extends State<PartScreen> {
     super.initState();
     WidgetsBinding.instance.addPostFrameCallback((_) {
       final messageService = Provider.of<MessageService>(context, listen: false);
-      messageService.initializeEmpty();
+      messageService.removeNonListeningMessages();
       setState(() {
         _isInitialized = true;
       });