Fix join-line and join-point cursors css to work with touch targets (closes #4887)
Fix join-line and join-point cursors css to work with touch targets
(closes #4887)

kartta-labs/iD,kartta-labs/iD,ngageoint/hootenanny-ui,mapmeld/iD,digidem/iD,mapmeld/iD,openstreetmap/iD,mapmeld/iD,digidem/iD,ngageoint/hootenanny-ui,openstreetmap/iD,morray/iD,AndreasHae/iD,AndreasHae/iD,ngageoint/hootenanny-ui,openstreetmap/iD,AndreasHae/iD,morray/iD,kartta-labs/iD