Show motion design tokens in the tokens section of the docs site #3474
Description
Summary
Motion design tokens exist but are not currently visible/represented in the Tokens section of the design system docs site. Add support so motion tokens are documented alongside other token types.
Scope
- Render motion token values in the same pattern as existing tokens (preview, token, value, category).
- Ensure motion tokens are included in the docs site build pipeline (no manual steps).
Acceptance criteria
- Motion tokens appear in the Tokens section of the docs site.
- Tokens are grouped in a clear “Motion” category (or equivalent).
- Add a filter category for "Motion" (or equivalent).
- Motion tokens are searchable