feat: add `<PrismicLink>` component

[samlfair]

Types of changes

• [ ] Chore (a non-breaking change which is related to package maintenance)
• [ ] Bug fix (a non-breaking change which fixes an issue)
• [x] New feature (a non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Description

Add a <PrismicLink> component that can accept a Link field, Content Relationship field, or entire Document, and output an <a> element.

<PrismicLink> accepts all SvelteKit link options and all HTML link attributes as props. It also accepts a Link Resolver.

Checklist:

• [x] My change requires an update to the official documentation.
• [x] All TSDoc comments are up-to-date and new ones have been added where necessary.
• [x] All new and existing tests are passing.

[samlfair]

@angeloashmore Thanks again for your feedback. I think I've addressed everything, and I responded to your question about rel="external". Let me know what you think. When things are looking good, I can merge and publish this.

[angeloashmore]

It looks great to me! Let's merge and publish. 🙂

[samlfair]

Published 🚀