disable alwaysOnTop on dispose

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/plugin/pl_player/controller.dart

@@ -1712,6 +1712,7 @@ class PlPlayerController {
       }
       return;
     }
+
     _playerCount = 0;
     _stopListenerForVideoFit();
     _stopListenerForEnterFullScreen();
@@ -1736,6 +1737,10 @@ class PlPlayerController {
     // playerStatus.close();
     // dataStatus.status.close();
 
+    if (Utils.isDesktop && isAlwaysOnTop.value) {
+      windowManager.setAlwaysOnTop(false);
+    }
+
     await removeListeners();
     if (playerStatus.playing) {
       WakelockPlus.disable();