Add support for chip links

jmuzina commented 2 months ago

Done

Applies button styling to link p-chip elements
Drive-by: code indentation fixes for the chip variants example, and removal of the set of chips inside a dark strip (we are now capturing examples in all themes anyway, so there is no need for this)

Fixes #5317 , WD-14348

Open link chips
Verify that the default link chip function as link, visually appear as chip, and is keyboard accessible.
Open combined links and verify that hover and active colors are correct. The section with "links" in front is a block of link chips of different styles, check all of these. Also check all of the other chps to ensure they behave correctly in hover and active states.
Review link chip docs

If this PR contains Vanilla SCSS code changes, it should contain the following changes to make sure it's ready for the release:

[x] PR should have one of the following labels to automatically categorise it in release notes:
- Feature 🎁, Breaking Change 💣, Bug 🐛, Documentation 📝, Maintenance 🔨.
[ ] Vanilla version in package.json should be updated relative to the most recent release, following semver convention:
- if CSS class names are not changed it can be bugfix release (x.x.X)
- if CSS class names are changed/added/removed it should be minor version (x.X.0)
- see the wiki for more details
[ ] Any changes to component class names (new patterns, variants, removed or added features) should be listed on the what's new page.