Gridfinity Rack - Looser Drawer Tolerances

This is a remix of the Ultimate Gridfinity Drawers 3x4 rack with looser tolerances for the drawer rails. With larger line widths or layer heights it's possible to print the original models and have <1mm rails, which then means lots of trouble getting drawers in/out. This opens up the rails to 2.2mm in the STL file which should leave ample room for 0.6/0.8mm nozzle prints to come out functional.