Revert the change to automatically focus top app on last window close
Revert the change to automatically focus top app on last window close

Had an interesting report from a user who relied on the macOS behavior. Commands now respond correctly in this situation so it is still strictly improved.

ianyh/Amethyst,ianyh/Amethyst,ianyh/Amethyst,ianyh/Amethyst,ianyh/Amethyst