Fixed login bug after logout

lib/view_models/auth_view_model.dart

@@ -13,8 +13,8 @@ class AuthViewModel with ChangeNotifier {
     : _authRepository = authRepository {
     usernameController.addListener(_onTextChanged);
     passwordController.addListener(_onTextChanged);
-    usernameFocus.addListener(_onTextChanged);
-    passwordFocus.addListener(_onTextChanged);
+    // usernameFocus.addListener(_onTextChanged);
+    // passwordFocus.addListener(_onTextChanged);
   }
 
   final TextEditingController usernameController = TextEditingController();
@@ -58,6 +58,10 @@ class AuthViewModel with ChangeNotifier {
     switch (result) {
       case Ok<LoginResponseModel>():
         _loggedInUser = result.value.data.customer;
+        usernameController.text.trim();
+        passwordController.text.trim();
+        usernameController.clear();
+        passwordController.clear();
         break;
       case Error<LoginResponseModel>():
         _errorMessage = result.error.toString();
@@ -70,6 +74,13 @@ class AuthViewModel with ChangeNotifier {
     notifyListeners();
   }
 
+  void forceLogout() {
+  _loggedInUser = null;
+  usernameController.clear();
+  passwordController.clear();
+  notifyListeners();
+}
+
   Future<void> logout() async {
     _errorMessage = null;
     notifyListeners();