[DNM] style(pds-link): update focus-visible and hover states based on figma design

[ju-Skinner]

Description

Updates the style for both :focus-visible and :hover states.

See ticket for more details as to why this is on hold

Fixes #(issue)
DSS-1053

Type of change

• Style (visual changes only)

How Has This Been Tested?

• unit tests
• e2e tests
• accessibility tests
• tested manually
• other: Storybook

Test Configuration:

• Pine versions:
• OS:
• Browsers:
• Screen readers:
• Misc:

Checklist:

If not applicable, leave options unchecked.

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing tests pass locally with my changes
• Design has QA'ed and approved this PR

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