design a new board to hold the electronics

[Armandpl]

• [x] design the board, print it and reassemble the car
• [ ] save the CAD as .STEP and .f360 files in the repo using gitlfs

[Armandpl]

additional tasks while we're at it:

• check the screw length on the gearbox I think they are not the right size
• update the transport foam to accommodate the new distance between front and rear wheels
• replace the tape that is holding the esc