When selecting an AirPlay output device, the device can currently only be selected by clicking the checkbox.
It would be more convenient if clicking the device name or icon also toggled the selection, rather than requiring the user to precisely click the checkbox.
This would also be consistent with the way device selection works in apps such as iTunes, where the device row itself can be used to make the selection.
Suggested behaviour:
Make the AirPlay device name/icon clickable so that clicking anywhere on the device row toggles that device's selection.
