fix qt5 build

Zhao Yuhang

2023-12-14 ca6ba7d7aa547b4e0c8d86fb9e00f25374a181db

 src/core/windowagentbase_p.h

@@ -22,6 +22,12 @@

        std::unique_ptr<AbstractWindowContext> context;

    public:
        using WindowContextFactoryMethod = AbstractWindowContext *(*) ();

        static WindowContextFactoryMethod windowContextFactoryMethod;

    private:
        Q_DISABLE_COPY_MOVE(WindowAgentBasePrivate)
    };