Feature: Always store high-quality timelapse media on-disk

It would be good to have an on-device database of previously recorded timelapses, even ones that are published.
While they would be compressed before being uploaded online, the offline database will remain in original quality.
When playing a timelapse from the Elapsed player with an ID match, it will play the offline media in favour of the serverside timelapse.
This setting **must** be controllable via a feature switch (both keeping timelapses offline, and playing offline timelapses in favour of serverside ones).