Disable native CC button in AVPlayerViewController during AirPlay

[Ludevv]

Problem
When AirPlay is active, the user can change subtitle language both in the app (via the native CC button) and on the
AirPlay device, which can lead to conflicts. Subtitle selection should only be possible through the AirPlay device
controls (when AirPlay connected with non Apple devices).

Solution

• Disable the native CC button in AVPlayerViewController when AirPlay is active
• Restore the button when AirPlay disconnects
• Find the CC button by matching the captions.bubble SF Symbol

Considerations

• Apple does not provide a public API to selectively hide or disable the CC button in AVPlayerViewController.
• On other Apple device works well

Demo:
non Apple device:

with Apple device:

[mobily]

LGTM