fix: use square offset to recompute outlines (CURA-3588)
fix: use square offset to recompute outlines (CURA-3588)

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