that's two clicks for a simple action!! it should be one, shouldn't it?
Behold:

Yes. All you need to install is tampermonkey/greasyfork and then go to my script and it will ask if you wanna use it. Read the code if you want first.
By the way, if you do read the code and have suggestions/improvements, let me know!
EDIT: we're on version 0.5 now wow. it should support light mode now and also work and also work when you're not going directly to the playlist url.