Fix static macro in QMake

Sine Striker

2024-05-30 2405bec2756ed88013f5a7f17d37b8747bc3028e

 examples/mainwindow/mainwindow.cpp

@@ -60,8 +60,7 @@
    setWindowTitle(tr("Example MainWindow"));
    resize(800, 600);

    setFixedHeight(600);

    // setFixedHeight(600);
    // windowAgent->centralize();
}