[9.3.0] Shelf no longer has icon_type, breaks most of getLibrary

[iBicha]

Steps to reproduce

1. Login
2. getLibrary()
3. Try to access any section (library.liked_videos, library.playlists_section, etc)

All of the sections return undefined, because the sections don't have the icon_type property anymore, which is being used to identify the section

Failure Logs

N/A

Expected behavior

Sections in Library work as expected

Current behavior

All sections has no types

Version

Default

Anything else?

I guess the ItemSection.target_id (which is target_id or sectionIdentifier) should be used to identify the the id of these special feeds

Checklist

• [X] I am running the latest version.
• [X] I checked the documentation and found no answer.
• [X] I have searched the existing issues and made sure this is not a duplicate.
• [X] I have provided sufficient information.

[LuanRT]

Now that YouTube no longer has a library, just a "You" page, I say we refactor this to something more generic to avoid things breaking like this in the future..

I think simply exposing contents & header should be enough, and perhaps also a few methods (we can identify them using the browseId) to get all content for some of the shelves.

[iBicha]

Now that YouTube no longer has a library, just a "You" page

For me https://www.youtube.com/feed/you and https://www.youtube.com/feed/library look exactly the same

[iBicha]

PS: I thought visiting https://www.youtube.com/feed/you would browse FEmy_youtube, but it was doing FElibrary