Create lets_split_v3.json

[ziptyze]

Creation of Let's Split v3 .json

Description

The Let's Split v3 is a new iteration of the classic keyboard originally designed by Wootapatoot. It is a split 4x12 ortholinear keyboard with per key rgb and rgb underglow.

QMK Pull Request

qmk/qmk_firmware#22465

Checklist

• The VIA support for this keyboard is MERGED in QMK master already (MANDATORY)
• The VIA definition follows the guide here: https://caniusevia.com/docs/layouts
• I have a V3 JSON version for this keyboard definition.(MANDATORY)
• I have tested this keyboard definition using VIA's "Design" tab.
• I have tested this keyboard definition with firmware on a device.
• I have assigned alpha keys and modifier keys with the correct colors.
• The Vendor ID is not 0xFEED