fix: synchronize subtitle titles from plex libraries

CHANGELOG.md

@@ -30,6 +30,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Extract embedded text subtitles (when enabled in settings) on channels that use custom stream selectors
 - Fix subtitle playback using Next streaming engine
 - Fix bug where search results for deleted manual collections would continue to appear
+- Fix synchronizing subtitle titles from Plex content; this may never have worked previously
 
 ### Changed
 - Upgrade Intel driver in docker containers to support latest Battlemage devices (e.g. B70)

ErsatzTV.Infrastructure/Plex/PlexServerApiClient.cs

@@ -839,7 +839,8 @@ public class PlexServerApiClient(PlexEtag plexEtag, ILogger<PlexServerApiClient>
                     Codec = subtitleStream.Codec,
                     Default = subtitleStream.Default,
                     Forced = subtitleStream.Forced,
-                    Language = subtitleStream.LanguageCode
+                    Language = subtitleStream.LanguageCode,
+                    Title = subtitleStream.Title
                 };
 
                 version.Streams.Add(stream);
@@ -861,7 +862,9 @@ public class PlexServerApiClient(PlexEtag plexEtag, ILogger<PlexServerApiClient>
                     Codec = subtitleStream.Codec,
                     Default = subtitleStream.Default,
                     Forced = subtitleStream.Forced,
-                    Language = subtitleStream.LanguageCode
+                    Language = subtitleStream.LanguageCode,
+
+                    Title = subtitleStream.Title
                 };
 
                 version.Streams.Add(stream);