rename the directory defintions back to kf5
we want the directory defintions to be picked up by 5 and 6 this fixes kickoff categories not having icons because the kf6 menu definition was still using the kf5 prefix
we want the directory defintions to be picked up by 5 and 6 this fixes kickoff categories not having icons because the kf6 menu definition was still using the kf5 prefix