Bugfix: sites were not allowing CSS uploads.
Bugfix: sites were not allowing CSS uploads.

inaturalist/inaturalist,calonso-conabio/inaturalist,pleary/inaturalist,pleary/inaturalist,calonso-conabio/inaturalist,pleary/inaturalist,calonso-conabio/inaturalist,calonso-conabio/inaturalist,inaturalist/inaturalist,pleary/inaturalist,inaturalist/inaturalist,pleary/inaturalist,inaturalist/inaturalist,calonso-conabio/inaturalist,inaturalist/inaturalist