hide window button for macOS

Author: Predidit

lib/main.dart

@@ -19,6 +19,7 @@ void main() async {
       size: isLowResolution ? const Size(800, 540) : const Size(1280, 800),
       center: true,
       skipTaskbar: false,
+      windowButtonVisibility: false,
       titleBarStyle: TitleBarStyle.hidden,
     );
     windowManager.waitUntilReadyToShow(windowOptions, () async {