Migrate users

[TheDreadPirate]

When I had to restore my Jellyfin after a hardware failure, I copied and pasted the entire /var/lib/jellyfin and /etc/jellyfin folders onto the new system from my daily backup. Jellyfin booted up as if nothing happened. I would have dig in to figure out which files, specifically, contain just the users. But restoring both of those folders is sufficient to restore everything.