Fix player controls not hiding if resumed from media button

app/src/main/java/org/schabi/newpipe/player/Player.java

@@ -3754,6 +3754,9 @@ public final class Player implements
             case KeyEvent.KEYCODE_SPACE:
                 if (isFullscreen) {
                     playPause();
+                    if (isPlaying()) {
+                        hideControls(0, 0);
+                    }
                 }
                 break;
             case KeyEvent.KEYCODE_BACK:

app/src/main/java/org/schabi/newpipe/player/playback/PlayerMediaSession.java

@@ -88,6 +88,7 @@ public class PlayerMediaSession implements MediaSessionCallback {
     @Override
     public void play() {
         player.play();
+        player.hideControls(0, 0);
     }
 
     @Override