fix: raft outline now uses rounded offset (CURA-1835)
fix: raft outline now uses rounded offset (CURA-1835)

ROBO3D/CuraEngine,Ultimaker/CuraEngine,alephobjects/CuraEngine,Ultimaker/CuraEngine,ROBO3D/CuraEngine,alephobjects/CuraEngine,ROBO3D/CuraEngine,alephobjects/CuraEngine