media without versions

[gael-connan-cybex]

testing revealed that there media without versions can exist.

this should not be possible. when the first version of a media cannot be created, the media must be deleted. this should happen in the upload process to make sure this is never the case.

Media::get()->mapWithKeys(fn($media) => [$media->id => $media->Versions->count()])->filter(fn($count) => $count < 1)

Media::get()->filter(fn($media) => $media->Versions->count() < 1)->each->delete()