Enable play/pause with space key even when not in fullscreen player

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

@@ -3752,12 +3752,10 @@ public final class Player implements
             default:
                 break;
             case KeyEvent.KEYCODE_SPACE:
-                if (isFullscreen) {
                 playPause();
                 if (isPlaying()) {
                     hideControls(0, 0);
                 }
-                }
                 break;
             case KeyEvent.KEYCODE_BACK:
                 if (DeviceUtils.isTv(context) && isControlsVisible()) {