* Cleanup layer binding formatting
* Align rows/columns
* Be consistent for each layer
* Consistent with `keymap.json`
* Replace `BKSP` with `BSPC`
* Based on https://zmk.dev/docs/codes/keyboard-keypad#control--whitespace
* Consistent with `keymap.json`
* Replace default layer `&kp KP_NUMBER_*` with `&none`
* These were `&none` in v1
* Consistent with other layers
