Add subscribe playlist button on app

[agevlakh]

Is your feature request related to a problem? Please describe.
Hello. There is no way to add a playlist via the app. In the browser, when selecting a playlist, there is a button to subscribe to the playlist so that it appears in the tab with my playlists, but I can't find this in the app. Please fix it.

Describe the solution you'd like
Add subscribe to playlist button on app

Describe alternatives you've considered
Add playlist on browser and see it on app

Additional context