private async void AuthTestBtn_Click(object sender, RoutedEventArgs e)
        {
            Common.appSettings.YandexApiKey = YandexTransApiKeyBox.Text;
            ITranslator YandexTrans = new YandexTranslator();

            YandexTrans.TranslatorInit(YandexTransApiKeyBox.Text, "");

            if (await YandexTrans.TranslateAsync("apple", "zh", "en") != null)
            {
                HandyControl.Controls.Growl.Success($"Yandex {Application.Current.Resources["APITest_Success_Hint"]}");
            }
            else
            {
                HandyControl.Controls.Growl.Error($"Yandex {Application.Current.Resources["APITest_Error_Hint"]}\n{YandexTrans.GetLastError()}");
            }
        }
        private async void TransTestBtn_Click(object sender, RoutedEventArgs e)
        {
            ITranslator YandexTrans = new YandexTranslator();

            YandexTrans.TranslatorInit(YandexTransApiKeyBox.Text, "");
            string res = await YandexTrans.TranslateAsync(TestSrcText.Text, TestDstLang.Text, TestSrcLang.Text);

            if (res != null)
            {
                HandyControl.Controls.MessageBox.Show(res, Application.Current.Resources["MessageBox_Result"].ToString());
            }
            else
            {
                HandyControl.Controls.Growl.Error(
                    $"Yandex {Application.Current.Resources["APITest_Error_Hint"]}\n{YandexTrans.GetLastError()}");
            }
        }