compute: fix editableGrid decimal
compute: fix editableGrid decimal

reconfigure editableGrid to use anglo decimal period not latin comma

graphicore/fontbakery,moyogo/fontbakery,graphicore/fontbakery,googlefonts/fontbakery,moyogo/fontbakery,googlefonts/fontbakery,graphicore/fontbakery,googlefonts/fontbakery,moyogo/fontbakery