message: Do not fire combobox validation when hovering over combobox items (win)
  Do not fire textbox validation when focus moves back to topic selection combobox (win)
diff: @@ -64,8 +64,22 @@ namespace TogglDesktop
  topicComboBox.Dispatcher.BeginInvoke(new Action(() => Keyboard.Focus(topicComboBox)), System.Windows.Threading.DispatcherPriority.Background);
  }
  - private void OnTopicComboBoxLostFocus(object sender, RoutedEventArgs e) => RefreshTopicComboBoxBinding();
  - private void OnFeedbackTextBoxLostFocus(object sender, RoutedEventArgs e) => RefreshFeedbackTextBoxBinding();
  + private void OnTopicComboBoxLostFocus(object sender, RoutedEventArgs e)
  + {
  + if (!topicComboBox.IsKeyboardFocusWithin)
  + {
  + RefreshTopicComboBoxBinding();
  + }
  + }
  +
  + private void OnFeedbackTextBoxLostFocus(object sender, RoutedEventArgs e)
  + {
  + if (!feedbackTextBox.IsKeyboardFocusWithin && !topicComboBox.IsKeyboardFocusWithin)
  + {
  + RefreshFeedbackTextBoxBinding();
  + }
  + }
  +
  private void RefreshFeedbackTextBoxBinding() => feedbackTextBox.GetBindingExpression(TextBox.TextProperty).UpdateSource();
  private void RefreshTopicComboBoxBinding() => topicComboBox.GetBindingExpression(ComboBox.SelectedItemProperty).UpdateSource();
  }
  