Implement power off button

hw: change size of holes for USBC connector - library `USB.lbr` - footprint `USB_C_8PIN` - change holes size from 0.35 mm to 0.30 mm to fit JLCPCB requirements

hw: improve silkscreen texts

hw: remove bottom mask under DRV8833s center pad

hw: add secondary UARTs and I2C Bot silkscreen

hw: fix position of origin in default jumper footprint - library `jumper.lbr` - `SJ2W_DEFAULT` - fix position of origin - update `RBCX.brd`

hw: move bottom LED resistors to the top

Add setBrake

Initialize motor power to zero

hw: change outline layer of display modules - `diy-modules.lbr` - change outline layer from `tPlace` to `Document` - footprint `DISPLAY-OLED-128X32` - footprint `DISPLAY-OLED-128X64-I2C_W-HOLES`