added multimedia support and STT. STT and photos are have bugs but are functional. file upload is conceptualized but will require additional backend work. video is on hold for now.

mobile/app/lib/components/no_chats_widget.dart

@@ -5,9 +5,6 @@ import 'package:provider/provider.dart';
 
 import 'package:app/theme.dart';
 
-import 'no_chats_model.dart';
-export 'no_chats_model.dart';
-
 class NoChatsWidget extends StatefulWidget {
   const NoChatsWidget({
     super.key,
@@ -26,24 +23,19 @@ class NoChatsWidget extends StatefulWidget {
 }
 
 class _NoChatsWidgetState extends State<NoChatsWidget> {
-  late NoChatsModel _model;
 
   @override
   void setState(VoidCallback callback) {
     super.setState(callback);
-    _model.onUpdate();
   }
 
   @override
   void initState() {
     super.initState();
-    _model = createModel(context, () => NoChatsModel());
   }
 
   @override
   void dispose() {
-    _model.maybeDispose();
-
     super.dispose();
   }