TF-859 Keep local copy in Forwarding

lib/features/manage_account/domain/state/edit_local_copy_in_forwarding_state.dart

@@ -0,0 +1,21 @@
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:forward/forward/tmail_forward.dart';
+
+class EditLocalCopyInForwardingSuccess extends UIState {
+  final TMailForward forward;
+
+  EditLocalCopyInForwardingSuccess(this.forward);
+
+  @override
+  List<Object?> get props => [forward];
+}
+
+class EditLocalCopyInForwardingFailure extends FeatureFailure {
+  final dynamic exception;
+
+  EditLocalCopyInForwardingFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}