Use brilliant workaround to show Windows 10 top border

Sine Striker

2023-12-24 46285db399f75154ad6c451e12f2cae2e59ace25

 examples/shared/widgetframe/windowbar.h

@@ -62,7 +62,7 @@
    protected:
        WindowBar(WindowBarPrivate &d, QWidget *parent = nullptr);

        QScopedPointer<WindowBarPrivate> d_ptr;
        const std::unique_ptr<WindowBarPrivate> d_ptr;
    };

}