Pull Request

🤨 Rationale

Implement readonly state for the step and anchor step. Implements the new readonly styling discussed in #2879 of showing focus state on keyboard interactions (and not active / hover states).

👩‍💻 Implementation

• Implement readonly visual, i.e. the only interaction states are default and focusVisible.
  • Leveraged the revert-layer css feature within active and hover layers to undo them for the readonly state
• Implement readonly behavior by catching click event from the underlying button / anchor and stopping propagation & preventing default action

🧪 Testing

• Added to matrix tests and interactions matrix tests. Required splitting the matrix and followed patterns elsewhere of splitting on theme and manipulation states
• Added tests for verifying click event in disabled and readonly

✅ Checklist

• I have updated the project documentation to reflect my changes or determined no changes are needed. Enabled readonly docs in storybook.