Stretch bottom boundary from Y=37.235 to Y=43.92 so the footprint
spans 51mm from antenna top to USB-C end. Update silkscreen,
courtyard, and fab outlines accordingly. Also fix broken right-side
silkscreen line endpoint.
Move pin columns from 22.86mm to 25.4mm X spacing. Shift all pins
up by 4.125mm so bottom pins sit 5.8mm from the footprint bottom
boundary. Update silkscreen, courtyard, and fab outlines to match.