fixes Media Dashboard grid xibosignage/xibo#1625
fixes Media Dashboard grid xibosignage/xibo#1625

PeterMis/xibo-cms,PeterMis/xibo-cms,xibosignage/xibo-cms,dasgarner/xibo-cms,dasgarner/xibo-cms,PeterMis/xibo-cms,dasgarner/xibo-cms,dasgarner/xibo-cms,xibosignage/xibo-cms,alexharrington/xibo-cms,dasgarner/xibo-cms,xibosignage/xibo-cms,alexharrington/xibo-cms,xibosignage/xibo-cms,xibosignage/xibo-cms,xibosignage/xibo-cms,alexharrington/xibo-cms,PeterMis/xibo-cms,PeterMis/xibo-cms,alexharrington/xibo-cms,alexharrington/xibo-cms,dasgarner/xibo-cms