Quickly drag up popup interface for switching to background

[SameenAhnaf]

Checklist

• I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• This issue contains only one feature request. I will open one issue for every feature I want to request.

Describe the feature you want

There are easy options for switching to main player from popup
Unfortunately, that is not the case with background switching.

Is your feature request related to a problem? Please describe it

Additional context

How will you/everyone benefit from this feature?

Users will be able to switch playback whenever needed instead of returning to main player.