Fix full screen closing/quitting on macOS
Fix full screen closing/quitting on macOS

See #139

salomvary/soundcleod,fr34k8/soundcleod,salomvary/soundcleod,fr34k8/soundcleod,fr34k8/soundcleod,salomvary/soundcleod,salomvary/soundcleod,fr34k8/soundcleod