feat(job): media availability support for jellyfin/emby (#522)

* feat(job): media availability support for jellyfin/emby

This refactors the media availability job to support jellyfin/emby for media removal automatically.
Needs further testing on 4k items (as I have not yet tested with 4k), however, non-4k items work as
intended.

fix #406, fix #193, fix #516, fix #362, fix #84

* fix(availabilitysync): use the correct 4k jellyfinMediaId

* fix: season mapping for plex

Fixes a bug introduced with this PR where media availability sync job removed the seasons from all
series even when those seasons existed

server/job/schedule.ts

@@ -1,4 +1,5 @@
 import { MediaServerType } from '@server/constants/server';
+import availabilitySync from '@server/lib/availabilitySync';
 import downloadTracker from '@server/lib/downloadtracker';
 import ImageProxy from '@server/lib/imageproxy';
 import {
@@ -167,7 +168,7 @@ export const startJobs = (): void => {
   });
 
   // Checks if media is still available in plex/sonarr/radarr libs
-  /*  scheduledJobs.push({
+  scheduledJobs.push({
     id: 'availability-sync',
     name: 'Media Availability Sync',
     type: 'process',
@@ -182,7 +183,6 @@ export const startJobs = (): void => {
     running: () => availabilitySync.running,
     cancelFn: () => availabilitySync.cancel(),
   });
-*/
 
   // Run download sync every minute
   scheduledJobs.push({