appState support modal message

lib/main.dart

@@ -110,7 +110,7 @@ class FlwtchState extends State<Flwtch> {
             supportedLocales: AppLocalizations.supportedLocales,
             title: 'Cwtch',
             theme: mkThemeData(settings),
-            home: appState.cwtchInit == true ? ShiftRightFixer(child: ProfileMgrView()) : SplashView(),
+            home: (!appState.cwtchInit || appState.modalState != ModalState.none) ?  SplashView() : ShiftRightFixer(child: ProfileMgrView()),
           ),
         );
       },

lib/model.dart

@@ -26,8 +26,14 @@ class ChatMessage {
       };
 }
 
+enum ModalState {
+  none,
+  storageMigration
+}
+
 class AppState extends ChangeNotifier {
   bool cwtchInit = false;
+  ModalState modalState = ModalState.none;
   bool cwtchIsClosing = false;
   String appError = "";
   String? _selectedProfile;