Doodboard Duckboard Middle Layer

This middle layers prevent excessive dust and dirt to accumulate inside the board and help diffuse the LEDs. Just replace entirely the 3D printed standoffs and fix them directly with the screws (may need to drill a little the holes).

> Above - (Green) Between switch plate and PCB. Prevent dirt accumulation.
> Below - (Yellow) Between PCB and Bottom plate, 1mm and 2mm variants (thickness of the perimeter walls). Dirt and LED diffusion.