Fix for Binepad BNK8, logic typo

[silvinor]

Description

Post-sale typo discovered in JSON, swapped 3 & 5 in custom settings map. No impact to users except those wanting to configure the per-key-RGB animation, and issue is minor - two colours swapped in keypad.

QMK Pull Request

• N/A - pertains to Add Binepad BNK8 #2379
• (o.g. = ) #24598

VIA Keymap Pull Request

• #36

Checklist

• The VIA support for this keyboard is MERGED in QMK master already (MANDATORY)
• VIA keymap is MERGED in VIA userspace 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 formatted the JSON file to have consistent formatting with the rest of the repository.
• 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