public async override void OnAppearing()
        {
            base.OnAppearing();

            var list = await _vocabularySqliteConnection.GetAllWithChildrenAsync <VocabularyPair <OwnVocabulary> >();

            if (list is null || !list.Any())
            {
                return;
            }
            VocabularyPairs       = new ObservableCollection <VocabularyPair <OwnVocabulary> >(list);
            ShownText             = list.FirstOrDefault().Vocabulary1.Text;
            CurrentVocabularyPair = list.FirstOrDefault();
            Culture1 = list.FirstOrDefault().Vocabulary1.Language;
            Culture2 = list.FirstOrDefault().Vocabulary2.Language;
        }