TF-1812 Implement interactor store sending email

(cherry picked from commit d1a064ec87c9f0ebdb373c893d891db9a93a9d37)

lib/features/email/domain/state/store_sending_email_state.dart

@@ -0,0 +1,14 @@
+
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+
+class StoreSendingEmailLoading extends UIState {}
+
+class StoreSendingEmailSuccess extends UIState {}
+
+class StoreSendingEmailFailure extends FeatureFailure {
+  StoreSendingEmailFailure(dynamic exception) : super(exception: exception);
+
+  @override
+  List<Object?> get props => [exception];
+}