* Allow to configure yt-dlp `--format-sort` argument
This exposes the [`--format-sort`] yt-dlp option to the user.
Implements parts of #316
* Trim split values of format_sort, obey black
* Add `format_sort` to default configuration
* Add note about codec compatibility to settings page
This adds a new check to the playlist url_id check to allow playlist urls from subscription only content on youtube channels.
The channel I tested on had an ID length of 26 (https://www.youtube.com/playlist?list=UUMOvk0KB4Ue0vfPqvDzjIAwiQ), I am not sure if other lengths are valid here also.
I have tested this on my local install and it is downloading the members only playlist correctly as long as I have valid youtube cookies.