This is useful as on wayland setting a path to a desktop file is
mandatory for icons on any windows. Qt sets the app_id to org.kde.kde5
but this desktop file doesn't exist.
We do a similar fix in plasmashell and other services that don't really
map to the traditional application pattern.
I set the type to something other than Application so we don't have to
put an Exec line though it wouldn't really matter as it's hidden anway.