A dedicated "Watch Later" playlist with a unique icon

[christopher-wilson]

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

I'm proposing a dedicated Watch Later playlist, with its own icon.

Currently, you'd have to make a playlist then add videos you want to save for later to that playlist. But there are two issues:

1. If you have playlists in tabs, there is no way to distinguish your "Watch Later" playlist from the other playlist tabs.
2. It isn't efficient having to manually choose which playlist you want to save videos to, if you just want to watch them later. This is more manageable on mobile, but a hassle on a Google TV device.

This playlist wouldn't have to behave any different than other playlists, except:

• You wouldn't be able to delete it
• It would have a unique icon for tabs
• A "Add to Watch Later" or "Save for Later" would be in the context menu for videos and on the video pages

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

The problem is that it takes too many steps to save videos, and is cumbersome if you are using a TV remote. YouTube, Spotify, DailyMotion, Plex, and many others, all have one-click watchlist capability. I'm also excluding streaming services like Netflix and Amazon Prime Video which don't do playlists, but have similar behaviors.

Additional context

I'm primarily a Google TV/Chromecast user, so I'm thinking about usability with a TV remote, but the suggestion does stand when used on a phone or a tablet.

How will you/everyone benefit from this feature?

Users will benefit because this will help NewPipe's UX align with other similar applications and services. I don't think anyone wants NewPipe to be a 1:1 clone of YouTube or another service, but basic features should be common and should operate the same way to reduce user friction.

[triallax]

Duplicate of #3508. Feel free to make a comment about this there.

[relexx]

I would even further ask for an action/button "Watch later" in popup notifications.

This request would not make any sense without a dedicated "Watch later" list, therefore I didn't open a dedicated issue for this.