Don't hide the playback controls in background mode

[dtcyganok]

Checklist

• I made sure that there are no existing issues - open or closed - which I could contribute my information to.
• I have read the FAQ and my problem isn't listed.
• I'm aware that this is a request for NewPipe itself and that requests for adding a new service need to be made at NewPipeExtractor.
• I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.
• I have read and understood the AI policy. The content of this request is not generated by AI.

Feature description

Switching to background mode leads to the playback controls hiding. But some of the controls are always needful. For example changing playing speed or reordering the playback queue require switching back to normal mode or minimizing the player, which is really inconvenient.

Why do you want this feature?

To improve the UX

Additional information

No response