fix bottom piece usb area cutouts to match the top

ground pad, led resistor, PTH screw mount holes

preparing for production - flip right side boards upside down - move right side towards the lest - move bottom towards the top - add mouse bites and rails - new detachable tabs implementation - move logos - adjust screw mount holes

pcb: add RESET/POWER label

pcb: add Elite-C/Alvaro 3d model

move push button references to S**, text to side

pcb: extend usb port, adjust copper to match

update footprints/3dmodels

prevent text issues, new footprints/3dmodels

pcb: fix text and footprint location