message: Handle Esc for closing Calendar (win)
diff: @@ -22,6 +22,14 @@ namespace TogglDesktop.Behaviors
  AssociatedObject.IsDropDownOpen = true;
  }
  }
  + else if (args.Key == Key.Escape)
  + {
  + if (AssociatedObject.IsDropDownOpen == true)
  + {
  + args.Handled = true;
  + AssociatedObject.IsDropDownOpen = false;
  + }
  + }
  if (!AssociatedObject.SelectedDate.HasValue)
  {
  