🚀 Feature Proposal

Expandable style re-factor is needed with the new cs prop. We will need to update this component to use the new system level tokens via CSS variables.

Acceptance Criteria:

• Expandable is tied to CSS variables system tokens
• The enhancements made are backwards compatible
• Update v13 upgrade guide
• Update v13 comms

Motivation

This will utilize the new cs prop and we now have access to new css properties