Add aria-label to router-link for accessibility

[VividLemon]

There's also an accessibility issue on the span, that only visually impaired people may not be capable of utilizing this element without a mouse with the "mouseenter" "mouseleave"

But :to=deepLink is a syntax error, so this component may not be used... I didn't think it would build properly if it were used

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Completion checklist

• Additions and changes have unit tests
• pre-commit hooks and tests are passing
• The pull request has been appropriately labeled using the provided PR labels
• If the UI contents or JavaScript files have been modified, generate a new example report:

# Generate the updated Javascript bundle
just build-js

# Generate the example report
just generate-report

[salesforce-cla]

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