Merge some great NewPipe PRs

[rodrigoswz]

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

Official NewPipe repo has several incredible contributions from the community, unfortunately many of them are ready and waiting for approval for even 2 years.

As it may take even longer to be approved (or not), would it be considerable merge them on that fork?

Some great examples:
Subscriptions shortcuts: TeamNewPipe#2434

AutoBackup: TeamNewPipe#3157

Add settings to match device's theme (dark & black): TeamNewPipe#3632

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

No

Additional context

How will you/everyone benefit from this feature?

These 3 PRs that I mentioned make perfect sense to be included in the app.

[MD77MD]

I vote up these PRs too:

Add support for tabs TeamNewPipe#3201
TeamNewPipe#3201 (comment)

Sleep timer TeamNewPipe#2892
TeamNewPipe#2892

YouTube's Fast Forward/Rewind behavior TeamNewPipe#4833

[login22rvp]

I agree it should more be called NewPipeX... Which include many experimental features keeping the core intact. People call choose to switch on and off basis their requirement. The core experience will remain same as main NewPipe.

NewPipeX can be a digital lab..

[Atemu]

Good luck with your fork @login22rvp!

[DUOLabs333]

Sounds interesting --- I would like to set it up.