Add Rubrehaku

[itsme-zeix]

Description

Add support for Rubrehaku

Types of Changes

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

Issues Fixed or Closed by This PR

• None

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).

[dunk2k]

@itsme-zeix
In layout LAYOUT_all, when compared to the other layouts is the missing top right key intentional?

[dunk2k]

@itsme-zeix In layout LAYOUT_all, when compared to the other layouts is the missing top right key intentional?

Or should it be that all layouts don't have a top right key? as shown in matrix_diagram.md

If correct, then community_layouts should be removed

[itsme-zeix]

@itsme-zeix In layout LAYOUT_all, when compared to the other layouts is the missing top right key intentional?

Or should it be that all layouts don't have a top right key? as shown in matrix_diagram.md

If correct, then community_layouts should be removed

@dunk2k Thank you. Appreciate the quick review.
All layouts should not have a top right key - though the functionality is identical with or without it. Removing community_layouts makes sense, no wonder I was having compilation issues.