fix: language filter also checks the title's original language (v1.0.0.15)

AllowedLanguages only filtered on each video's iso_639_1 tag, and TMDB
often tags subtitled foreign trailers as "en". With en,fr selected, 6 of
27 downloaded trailers were Korean, Chinese or Zulu titles. Candidates
now also need an allowed original_language (from the list results, so
no extra API calls).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

build.yaml

@@ -1,5 +1,5 @@
 ---
-version: 1.0.0.14
+version: 1.0.0.15
 name: CinemaTrailers4Jellyfins
 guid: b581493e-1046-40ed-b6dc-cb8027624984
 description: >
@@ -12,9 +12,10 @@ category: General
 owner: 514mart
 targetAbi: 10.11.0.0
 changelog:
-  - When yt-dlp fails part-way, its partial download files (.part, .ytdl,
-    separate video/audio) are now deleted instead of being left in the
-    trailer folder
+  - Trailer Languages now also checks the original language of the movie or
+    show. Before, only the trailer's own language tag was checked, and
+    TMDB often tags subtitled foreign trailers as English, so Korean,
+    Chinese or Japanese trailers got through
 
 dotnetProjects:
   - name: Jellyfin.Plugin.CinemaTrailers4Jellyfins