TF-2101 Handle restore deleted messages

(cherry picked from commit e675f98a6c85d9c4a90efc686e6ff72d23b4c678)

lib/features/mailbox/domain/state/get_mailbox_by_role_state.dart

@@ -0,0 +1,20 @@
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';
+
+class GetMailboxByRoleLoading extends LoadingState {}
+
+class GetMailboxByRoleSuccess extends UIState {
+  final Mailbox mailbox;
+
+  GetMailboxByRoleSuccess(this.mailbox);
+
+  @override
+  List<Object> get props => [mailbox];
+}
+
+class InvalidMailboxRole extends FeatureFailure {}
+
+class GetMailboxByRoleFailure extends FeatureFailure {
+  GetMailboxByRoleFailure(dynamic exception) : super(exception: exception);
+}