[Feature request] Sleep timer option for ending at the end of the video

[91grayjay]

Checklist

• [x] I have searched for existing issues (open and closed) and confirmed this feature hasn't been requested before
• [x] I believe this feature request will benefit more than 10% of users, not just myself

Feature Description

An option for the sleep timer to end at the end of the video, instead of the set duration or having to guess manually.

I think it would be a good addition since it is like the official youtube app, and like for music listening, it's the same with spotify as well.

Also other youtube (music) front end also lacks this option "end of video" for sleep timer for some reason.