make it so that the video gets prepped even in background audio mode so that it's possible to switch to video mode later on

Changelog: changed

app/src/main/java/com/futo/platformplayer/fragment/mainactivity/main/VideoDetailView.kt

@@ -1160,6 +1160,8 @@ class VideoDetailView : ConstraintLayout {
                 _player.switchToVideoMode();
                 allowBackground = false;
                 _buttonPins.getButtonByTag(TAG_BACKGROUND)?.text?.text = resources.getString(R.string.background);
+            } else {
+                _buttonPins.getButtonByTag(TAG_BACKGROUND)?.text?.text = resources.getString(R.string.video);
             }
         }
         if(!_player.isFitMode && !_player.isFullScreen && !fragment.isInPictureInPicture)

app/src/main/java/com/futo/platformplayer/views/video/FutoVideoPlayerBase.kt

@@ -873,7 +873,7 @@ abstract class FutoVideoPlayerBase : RelativeLayout {
 
     @OptIn(UnstableApi::class)
     private fun loadSelectedSources(play: Boolean, resume: Boolean): Boolean {
-        val sourceVideo = if(!isAudioMode || _lastAudioMediaSource == null) _lastVideoMediaSource else null;
+        val sourceVideo = _lastVideoMediaSource
         val sourceAudio = _lastAudioMediaSource;
         val sourceSubs = _lastSubtitleMediaSource;