Shokofin Dev 5.0.6.6

Update your plugin using the dev manifest or by downloading the release from GitHub Releases and installing it manually!

Changes since last build:

chore: Remove unnecessary imports.

chore: .OfType<>() → .WhereNotNull().

refactor: Update UpdateReason enum members.

chore: Use explicit type instead of interface.

refactor: Remove metadata refresh guard.

refactor: Mark refreshFields argument as required.

refactor: Make provider id a string.

fix: Fix setting series type.

refactor: Separate image/metadata event processing, refactor metadata refresh service.