Set buffering to false on dispose

android/src/main/java/com/ryanheise/just_audio/AudioPlayer.java

@@ -323,6 +323,7 @@ public class AudioPlayer implements MethodCallHandler, Player.EventListener {
 
 	public void dispose() {
 		player.release();
+		buffering = false;
 		transition(PlaybackState.none);
 	}
 

ios/Classes/AudioPlayer.m

@@ -323,7 +323,7 @@
 - (void)dispose {
 	if (_state != none) {
 		[self stop];
-		[self setPlaybackState:none];
+		[self setPlaybackBufferingState:none buffering:NO];
 	}
 }