Required update for Jellyfin 10.11.9 and newer.
Jellyfin 10.11.9 changed the IUserManager ABI (the Users property was removed, replaced by a GetUsers() method). The plugin was compiled against the 10.11.0 SDK, so on Jellyfin 10.11.9 and 10.11.10 every read of the user list throws MissingMethodException. Symptoms reported in #46: the in-dashboard Stats and History endpoints return 500, the "Sync watched movies to Letterboxd" scheduled task fails immediately, and "Sync Letterboxd watchlist to playlist" fails the same way.
This release recompiles the plugin against Jellyfin.Controller / Jellyfin.Model 10.11.10 and rewrites the seven _userManager.Users call sites against the new GetUsers() method. The plugin's behaviour is otherwise unchanged from v1.12.0.
Compatibility: targetAbi is now 10.11.9.0. Jellyfin's plugin catalog will only offer v1.13.0 to servers running Jellyfin 10.11.9 or newer. If you are on Jellyfin 10.11.0 through 10.11.8 you will continue to be served v1.12.0 by the catalog, which still works for you; upgrade Jellyfin if you want future plugin updates.
Fixes #46.