Optimize Windows 10 border handling

Sine Striker

2023-12-25 29901fc2a97eedd3c914f807d1819c9ea7e69973

 src/core/contexts/cocoawindowcontext_p.h

@@ -25,6 +25,8 @@

    protected:
        void winIdChanged() override;
        bool windowAttributeChanged(const QString &key, const QVariant &attribute,
                                    const QVariant &oldAttribute) override;

    protected:
        WId windowId = 0;