Figma update: Add white link variation to va-link

[caw310]

Description

There's a request to allow to be a white link instead of default blue #2602. We need to add this to Figma

Details

Tasks

• [ ] Update va-link component with a white link instead of the default blue
• [ ] Get review from designer(s)

Acceptance Criteria

• [ ] va-link design has a variation with a white link

[caw310]

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