feat: Add subject area to banner text and header

[jendiamond]

Connected to APPS-1947

This PR

• updates the conditionals and the CSS Styling of the BannerText & BannerHeader
• changes the color of the Category on the Article List Component
• updates the stories for the byline to be consistent

[github-actions[bot]]

🚀 Deployed on https://deploy-preview-233--ucla-library-storybook.netlify.app

[matheusgomes062]

We are having some problems with BannerText Article Detail

[pghorpade]

:tada: This PR is included in version 1.68.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: