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ACR60 Refactor (#13575)

* modernize acr60.h

- use #pragma once include guard
- add license header
- use four-space indent
- use QMK three-character notation for layout macro arguments

* human-friendly format info.json

* remove `key_count` keys from info.json

* rename LAYOUT_2_shifts to LAYOUT_all

* move LAYOUT_all to top

* use QMK three-character notation in info.json

* refactor default keymap

- add license header
- remove third layer (does nothing)
- replace Shift-Escape keycode with KC_GESC
- use LAYOUT_all macro instead of LAYOUT

* modernize readme.md

- update header
- convert metadata section to list
- add flashing and bootloader jump instructions
- update Docs links

* use #pragma once include guard in config.h

* update LED Indicator API

* add license headers

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Cutie Club Giant Macro Pad: add info.json (#13576)

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Xelus Akis Configurator Fixes (#13577)

* correct layout macro references

The keyboard's header file and info.json referenced different layout macro names.

* correct layout data

Insert an object for the Non-US Backslash key, which was previously missing.

Revert "Add rgblight to RGB Matrix VPATH" (#13559)

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remove `RGBLIGHT_H_DUMMY_DEFINE` macro from rgblight.h (#13569)

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Limit RGB brightness for crkbd when not defined (#13568)

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Improve driver installation docs (#13562)

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adding tw40 via support (#13032)

Move `SENDSTRING_BELL` code to `send_string.h` (#13566)

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[Keyboard] Neito + my DZ60 keymap tweaks (#11773)

Merge remote-tracking branch 'origin/master' into develop

Remove unwanted notes (#13563)