Fix classes of map data lists and items (gpx layer was erroneously classed `layer-gpx` and getting `pointer-events:none`)
Fix classes of map data lists and items
(gpx layer was erroneously classed `layer-gpx` and getting `pointer-events:none`)

openstreetmap/iD,zbycz/iD,edpop/iD,kepta/iD,AndreasHae/iD,ngageoint/hootenanny-ui,bagage/iD,kartta-labs/iD,morray/iD,edpop/iD,AndreasHae/iD,AndreasHae/iD,morray/iD,ngageoint/hootenanny-ui,openstreetmap/iD,kartta-labs/iD,bagage/iD,kepta/iD,digidem/iD,mapmeld/iD,mapmeld/iD,edpop/iD,energiekollektiv/openmod.sh-id,bagage/iD,1ec5/iD,mapmeld/iD,1ec5/iD,1ec5/iD,digidem/iD,ngageoint/hootenanny-ui,kartta-labs/iD,energiekollektiv/openmod.sh-id,zbycz/iD,openstreetmap/iD