plugins/outputlocator: show physical size in output locator

Make sure the effect shows the same sizes as the KScreen KCM.

src/plugins/outputlocator/outputlocator.cpp

@@ -79,7 +79,7 @@ void OutputLocatorEffect::show()
     const auto screens = effects->screens();
     for (const auto screen : screens) {
         auto scene = new OffscreenQuickScene();
-        scene->setSource(m_qmlUrl, {{QStringLiteral("outputName"), outputName(screen)}, {QStringLiteral("resolution"), screen->geometry().size()}, {QStringLiteral("scale"), screen->scale()}});
+        scene->setSource(m_qmlUrl, {{QStringLiteral("outputName"), outputName(screen)}, {QStringLiteral("resolution"), screen->pixelSize()}, {QStringLiteral("scale"), screen->scale()}});
         QRectF geometry(0, 0, scene->rootItem()->implicitWidth(), scene->rootItem()->implicitHeight());
         geometry.moveCenter(screen->geometry().center());
         scene->setGeometry(geometry.toRect());