Use chevron icon in article pagination

[wszczawinski]

Done

• change article pagination chevrons to dedicated icon

Fixes #4604

QA

• Open demo
• Make sure it uses chevron icons instead of text.

Check if PR is ready for release

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

• 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 relesase (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.
• Documentation side navigation should be updated with the relevant labels.

Screenshots

• before

- after

[webteam-app]

Demo link: https://vanilla-framework-4669.demos.haus/

[bartaz]

Hey @wszczawinski. Thanks for your contribution. Couple small fixes needed to merge this added in inline comments.

[bartaz]

Looks good to me!

Dzięki @wszczawinski!