Use non-deprecated KDEInstallDirs variables
The non-prefixed ones have been backward-compat variables since the start of KF5, will be gone with KF6.
See also deprecation notes on https://api.kde.org/ecm/kde-module/KDEInstallDirs5.html
The non-prefixed ones have been backward-compat variables since the start of KF5, will be gone with KF6.
See also deprecation notes on https://api.kde.org/ecm/kde-module/KDEInstallDirs5.html