"Play all" button should be replaced by a checkbox for enabling or disabling "Enqeue all"

[SameenAhnaf]

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

On current version, I play first video on a playlist, the whole playlist gets enqeued which might not be always necessary. Plus, if I want to play any video other than first video, the videos don't get enqeued. If I select other than first video, it means I want to watch selected video at first. But that doesn't mean I don't want to enqeue other videos.

Whenever I click the "Play all" button, the app plays from first video whether it is in channel or playlist. But playing other than first video never means denying to enqeue the list.

Two more options in the settings can be added "Always mark Enqeue All for channel" and "Always mark Enqeue All for playlist". In most cases, we don't need to enqueue the whole channel. But that is not the case for most playlists. If enabled, the checkbox will be marked. If disabled, the checkbox will not be marked.

Enqeue All checkbox should still persist. This will make the experience flexible without any annoying popup or the need of changing settings. Play All should not have a comeback as I never know if a channel or playlist is updated or not. If a user always wants to play all videos of a playlist or a channel, he will keep Enqeue all checkbox marked by default.

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

Additional context

How will you/everyone benefit from this feature?

[SameenAhnaf]

I created a better alternative in #5741.