/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kconfig/qmldir is in qml-module-org-kde-kconfig 5.44.0-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | module org.kde.kconfig
plugin kconfigplugin
|