Use brilliant workaround to show Windows 10 top border

Sine Striker

2023-12-24 46285db399f75154ad6c451e12f2cae2e59ace25

 src/core/style/styleagent_p.h

@@ -28,8 +28,8 @@

        StyleAgent::SystemTheme systemTheme = StyleAgent::Unknown;

        virtual void setupSystemThemeHook();
        virtual void removeSystemThemeHook();
        void setupSystemThemeHook();
        void removeSystemThemeHook();

        void notifyThemeChanged(StyleAgent::SystemTheme theme);
    };