Added transcription of audio and video files to local data sources (#1081)

Co-authored-by: Paul Koudelka <106623909+PaulKoudelka@users.noreply.github.com>

app/Tests/Tools/FileSizeLimitTests.cs

@@ -140,5 +140,5 @@ public sealed class FileSizeLimitTests
     }
 
     // Finding the files reads none of them, so it needs neither the runtime nor the chunker:
-    private static FileSourceIndexer CreateIndexer() => new(null!, null!, null!, NullLogger.Instance);
+    private static FileSourceIndexer CreateIndexer() => new(null!, null!, null!, null!, NullLogger.Instance);
 }