QoL update on trace bus between MCU and DM logo

Final release adjustments

Updated layout files

Adjust 6.25U spacebar stab hole placement

DRC, plate outlines, silkscreen

- Added plate outlines in Austin.Plate layer
- DRC checks, small errors corrected
- Slightly revised silkscreen: thickened 0.12mm arrows to 0.2mm

Schematic check done

Add warning sign to numpad

Add further component metadata

Change label to V2.1

Add LED polarity indicators, clean routes up