message: Fix TitlelessWindow close button position on macOS
diff: @@ -281,7 +281,7 @@ bool TitlelessWindowBase<T>::Layout()
  if (m_closeButton)
  {
  #ifdef __WXOSX__
  - m_closeButton->Move(2, 4);
  + m_closeButton->Move(4, 4);
  #else
  auto size = this->GetClientSize();
  m_closeButton->Move(size.x - m_closeButton->GetSize().x, 0);
  