[Keyboard] Add via config for the id67 rgb variant

[thewerther]

Add the necessary changes to the via keymap in the new id67 rgb variant folder.
Plus some changes to my personal keymap.

Description

• Added RGB Matrix support to the id67. The via part will be added when this PR has been merged.
• Updated my personal keymap

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[thewerther]

Closed in favor of #15854.