Fix preset icon misalignment due to rounding errors
Fix preset icon misalignment due to rounding errors

openstreetmap/iD,morray/iD,openstreetmap/iD,AndreasHae/iD,kartta-labs/iD,digidem/iD,kartta-labs/iD,kartta-labs/iD,morray/iD,digidem/iD,AndreasHae/iD,openstreetmap/iD,AndreasHae/iD