[feat] Redesign `<rh-navigation-secondary>`

[marionnegp]

Description

With the redesign and launch of <rh-navigation-primary>, the System DUX team needs us to prioritize redesigning <rh-navigation-secondary>.

Acceptance Criteria

• Design done
• Development done

Images

No response

Design file

No response

Other resources

• @coreyvickery's secondary nav explorations (Figma file)

[hellogreg]

When we get around to this, we should discuss whether we want to continue using links with role="button" (for the sake of URL fallbacks) or if we should just go straight disclosure.

• Some sections do use the fallback links (English Blog).
• Some use them, but they point to empty and/or 404 pages (Taiwan Blog)
• And some just use href="#" (Brand standards, Products)

We're trying to eliminate all href="#" instances at RHDC, so how we tackle this will affect how those pages are coded.