Fade sounds based on the current volume, not the full volume.

GitOrigin-RevId: 9993f98796a988466aeda8766eb98edcfba4af3a

ui/AudioPlayer.tsx

@@ -114,7 +114,7 @@ class AudioPlayer {
     const instance = this.getInstance(name);
     instance.off('fade');
     if (instance.playing() && duration > 0) {
-      instance.fade(1, 0, duration);
+      instance.fade(instance.volume() || 1, 0, duration);
       instance.once('fade', () => instance.stop());
     } else {
       instance.stop();