feat(OPTIP-303): default inBandMetadataTrackDispatchType to empty string on Android when null

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

Author: danieldallos-dolby

android/src/main/java/com/theoplayer/track/TrackListAdapter.kt

@@ -72,7 +72,7 @@ object TrackListAdapter {
     textTrackPayload.putBoolean(PROP_FORCED, textTrack.isForced)
 
     // THEOplayer v10.13+
-    textTrack.inBandMetadataTrackDispatchType?.let { textTrackPayload.putString(PROP_IN_BAND_METADATA_TRACK_DISPATCH_TYPE, it) }
+    textTrackPayload.putString(PROP_IN_BAND_METADATA_TRACK_DISPATCH_TYPE, textTrack.inBandMetadataTrackDispatchType ?: "")
     textTrack.captionChannel?.let { textTrackPayload.putInt(PROP_CAPTION_CHANNEL, it) }
 
     // Optionally pass cue list.