Dragging/adding multiple songs / ful albums into a playlist

[NicTanghe]

Hello fist 2 minutes on this app, one thing that bothered me on this amazing app.

That is, that adding songs to a playlist is a complete hassle. Having to look for a button for each individual song and then select add to playlist is a hassle by far.

[nukeop]

I admit this is pretty hard to do. I'm thinking the option to do so could be added to the menu that pops up when you've got multiple tracks selected in pretty much any list of tracks:

[sferra]

I have a prototype for adding full albums to playlists.
If there's any interest in this functionality, then I could polish it and create a PR.

[nukeop]

That's a natural place to add this functionality. If you can, please open a PR.