option: add media to favourites

[ilf]

Feature suggestion

I would love a way to add media to Favourites.

Context

Favourites "is a simple but useful feature that allows you to gather a selection of different items into one easily accessible location on the Main Menu".

Currently, Kore can view Favourites.

But I can't find a way to add media to Favourites.

I'm sure that would be very useful for many users.

Thanks, and keep up the good work.