TF-2830 Add recipient directly to account when click + Add recipients

lib/features/manage_account/domain/exceptions/forward_exception.dart

@@ -1,3 +1,5 @@
-class NotFoundForwardException implements Exception {
-  NotFoundForwardException();
-}
+class NotFoundForwardException implements Exception {}
+
+class RecipientListIsEmptyException implements Exception {}
+
+class RecipientListWithInvalidEmailsException implements Exception {}