include KDECMakeSettings and KDEInstallDirs before searching Qt and KF
Otherwise searching for those will run GNUInstallDirs and set LIBDIR which results in a wrong value on Debian like systems which is handled as a special case in KDEInstallDirs.
Otherwise searching for those will run GNUInstallDirs and set LIBDIR which results in a wrong value on Debian like systems which is handled as a special case in KDEInstallDirs.