Wanleg tuneup / additions (#5752)

Wanleg tuneup / additions (#5752)

* change split keyboard tapping term in userspace

* fix 5x15 layout numpad movement

* minor changes for Nori setup

* edit based on 40percentclub refactor change

* fix gherkin due to refactor

* kbd6x wanleg keymap

* kbd6x edits

* kbd6x tweak

* fn / backlight layer

* fix jj40 rgb hex issue

* wanleg gherkin lighting

* 4x12 layout cleanup

* move kbd6x to new kbdfans directory

* minor edit related to new kbdfans directory

* mac layout for kbd6x

* gherkin flip option

* tweak tapping term on lets_split

* edit for keebio board coalescing

* update user readme with git hints

* wanleg miniaxe keymap

* testing Permissive Hold instead of Mod Tap Interrupt

* wiring names

* kbd6x keymap

* change default backlight behaviour on kbd6x

* userspace underglow

* userspace underglow

* underglow tweaks

* user readme update

* more layer underglow tweaks

* fix userspace for non-underglow-enabled boards

* readme edits

* readme edits

* readme edits

* readme edits

* Update readme.md

* Update readme.md

* readme edits

* readme edits

* update keymap picture