[Feature]: Favourites section for assets

[zackpollard]

Feature detail

Google photos allows you to favourite images and videos that you want to keep, this is probably most commonly used as a refined gallery as it's very easy to go through and favourite images to reduce the amount of images you have and curate a quality gallery section as you take photos.

Platform

Web & Mobile

[bo0tzz]

Partially implemented in #939, but only on web and still missing a way to view all favourited assets.