message: Fix timer entries being non selectable (win)
diff: static class ListBoxItemViewModelExtensions
  {
  public static bool IsSelectable(this ListBoxItemViewModel item) => item.IsModelItem();
  - public static bool IsModelItem(this ListBoxItemViewModel item) => (int) item.Type > 0;
  + public static bool IsModelItem(this ListBoxItemViewModel item) => (int) item.Type >= 0;
  }
  }
  