executeAction method
- {required BuildContext context,
- required WidgetRef ref,
- required AppModel appModel,
- required CreatorModel creatorModel,
- required DictionaryHeading heading,
- required String? dictionaryName}
override
    Execute the functionality of this action.
Implementation
@override
Future<void> executeAction({
  required BuildContext context,
  required WidgetRef ref,
  required AppModel appModel,
  required CreatorModel creatorModel,
  required DictionaryHeading heading,
  required String? dictionaryName,
}) async {
  if (!appModel.isTermInStash(heading.term)) {
    appModel.addToStash(terms: [heading.term]);
  } else {
    appModel.removeFromStash(term: heading.term);
  }
}