fix some win32 issues

Yuhang Zhao

2023-12-27 e5370435a9d4297d0ba227f2237d7ed16bba7e82

 src/core/windowitemdelegate.cpp

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

    WindowItemDelegate::~WindowItemDelegate() = default;

    void WindowItemDelegate::resetQtGrabbedControl() const {}
    void WindowItemDelegate::resetQtGrabbedControl(QObject *host) const {
        Q_UNUSED(host);
    }

}