fix(jellyfin.ts): process virtual seasons if they have non virtual ep…

…isodes (#639)

All seasons are processed now, but those without any episodes are filtered out again as unavailable.
This fixes in issue where jellyfin reports all seasons as virtual

server/api/jellyfin.ts

@@ -261,9 +261,7 @@ class JellyfinAPI {
     try {
       const contents = await this.axios.get<any>(`/Shows/${seriesID}/Seasons`);
 
-      return contents.data.Items.filter(
-        (item: JellyfinLibraryItem) => item.LocationType !== 'Virtual'
-      );
+      return contents.data.Items;
     } catch (e) {
       logger.error(
         `Something went wrong while getting the list of seasons from the Jellyfin server: ${e.message}`,