Video player should be fixed when scrolling through comments/description/similar.

[deflagrator]

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.

What feature do you want?

When scrolling through the comments/description/similar videos while watching a video, the video player should be fixed, like the original youtube app/website. It should not scroll up.

Why do you want this feature?

It would help in reading them without needing to pause the video.

[SameenAhnaf]

Duplicate of #4484