Keep "astyled" reformatting
Apply `ENABLED` / `DISABLED` macros to files needing only a small number of changes.
- Init `zprobe_zoffset` - Remove `current_position[Z_AXIS] = zprobe_zoffset` lines from the `set_bed_level_equation_*` functions - Apply standards to `mesh_bed_leveling` files - Document `MESH_BED_LEVELING`