* [style] refactor keymaps
- use four-space indent
- grid-align keycodes
- use QMK-native keycode aliases
* [style] friendly-format info.json
* [chore] remove key overlaps in layout data
* [chore] correct key sequence
* [chore] add key labels
Add `label` keys to the JSON layout data to disambiguate which keys each
object is meant to represent.
Based on the original key sizes and positions as submitted by the
maintainer.
* [docs] add layout/matrix diagram
* [refactor] rename LAYOUT to LAYOUT_all
* [enhancement] add LAYOUT_tkl_ansi_split_bs_rshift
* [enhancement] add LAYOUT_tkl_iso_split_bs_rshift
* [enhancement] enable Community Layout support
