Fix PiP behavior

[nielsvanvelzen]

Changes

• Only navigate back when playback ends if not in PiP mode
  • This avoids the normal app being rendered in the PiP window (e.g. downloads screen or webview)
• Navigate back when player is released in resume
  • This way when PiP is made fullscreen again we still go back as expected
• Activate PiP when player exists, no matter what the play/pause state is
  • This fixes issues where buffering video won't activate PiP

Code assistance

Issues