feat(YouTube): Remove sleep timer menu restrictions

[zainarbani]

Screenshots

TODO

• Finish and merge feat(YouTube): Support versions 19.25 and 19.34 #3629
• Add options to hide this menu

[cyberboh]

If you press Close, will YouTube close, and will you no longer be able to open it?

[zainarbani]

If you press Close, will YouTube close, and will you no longer be able to open it?

If the user still 'awake' then press close to continue watching, or simply ignore it (sleep) then screen will go off by itself.

[cyberboh]

@LisoUseInAIKyrios the tittle shouldn't changed, it's to unlock the timer, not to remove it, imo

[LisoUseInAIKyrios]

The PR title is the same as the patch name, and its similar to the Remove background playback restrictions.

This PR removes all restrictions for using the sleep timer, including the a/b account selection restriction since sleep timer is an experimental feature.

[LisoUseInAIKyrios]

This could use a new hide fly out setting, to hide the feature if the user doesn't want it.

Looks like the buffer string yt_outline_moon_z_ works