fix default z-index values for metadata fields on detail view
fix default z-index values for metadata fields on detail view

jrassa/EmulationStation,jrassa/EmulationStation,joolswills/EmulationStation,joolswills/EmulationStation,jrassa/EmulationStation,joolswills/EmulationStation,jrassa/EmulationStation,zigurana/EmulationStation,zigurana/EmulationStation,joolswills/EmulationStation,zigurana/EmulationStation