Allow access to restricted content using YouTube login cookie.

[funsafe-ptr]

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 Tubular itself and that requests for adding a new service need to be made in vanilla 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 vanilla NewPipe contribution guidelines.

Feature description

Allow access to restricted content using YouTube login cookie. And use the cookie only if required.

Why do you want this feature?

YouTube now requires an account to access restricted content.

Why ist the feature relevant to this fork?

Upstream issue marked "wontfix".
TeamNewPipe/NewPipe#11382

Additional information

https://codeberg.org/NullPointerException/PipePipeClient/src/branch/dev/app/src/main/java/org/schabi/newpipe/settings/YouTubeAccountSettingsFragment.java
https://codeberg.org/NullPointerException/PipePipeClient/src/branch/dev/app/src/main/java/org/schabi/newpipe/views/YouTubeLoginWebViewActivity.java
https://codeberg.org/NullPointerException/PipePipeExtractor

Like you said, PipePipe is a hard fork and might be tough to merge. 😓
It looks like PipePipe is using yt-dlp, so maybe no? 🤔

Anyway, I don’t know much Java, and I’m using my phone 📱, so I’m not sure how much I can help. 😕