Fix grammar mistake. Fix Gcode comment formatting. Fix application of `Optimize Step Over Transitions` by adjusting the offset tolerance for creating the offset cut area for the operation. Fix math error in circular based cut patterns for small diameter cutters. Identification of bugs begins in the forum at https://forum.freecadweb.org/viewtopic.php?style=3&f=15&t=41997&start=210. Path: Lower SampleInterval minimum to 0.0001mm