Fix windows custom margins key mistake

Sine Striker

2023-12-09 7aabc22e0b6841a46eb449398e4e8910352008cc

 src/core/contexts/win32windowcontext.cpp

@@ -289,7 +289,7 @@
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
        if (QPlatformWindow *platformWindow = window->handle()) {
            if (const auto ni = QGuiApplication::platformNativeInterface()) {
                ni->setWindowProperty(platformWindow, QStringLiteral("_q_windowsCustomMargins"),
                ni->setWindowProperty(platformWindow, QStringLiteral("WindowsCustomMargins"),
                                      marginsVar);
            }
        }