Library theming: Update Primary detail template in design kit #973

Update the Primary detail template in the PatternFly design kit to align with the unified theme. Update Figma files, styles, documentation, and ensure unified visual consistency throughout.

Deliverables:

• Update tokens

• Include new variants

• Update branded icons

• Address audit fixes:

• BUG: Figma design show a full bounding border around the primary detail component and the org design shows a half border around the simple list and data list only. Which is the correct implementation?

Jira Issue: PF-3921