feat: APPS-2550 Add FlexibleHighlight component

[tinuola]

Connected to APPS-2550

Component Created: Flexible/Highlight.vue

Stories: ~/stories/Flexible_Highlight.stories.js

Spec: ~/stories/Flexible_Highlight.spec.js

Notes:

{Any notes about what you built. How does it work? Anything missing?}

Checklist:

• [x] I checked that it is working locally in the dev server
• [x] I checked that it is working locally in the storybook
• [x] I checked that it is working locally in the library-website-nuxt dev server
• [ ] I added a screenshot of it working
• [ ] UX has reviewed and approved this
• [x] I assigned this PR to someone on the dev team to review
• [x] I used a conventional commit message
• [x] I assigned myself to this PR

[github-actions[bot]]

🚀 Deployed on https://deploy-preview-446--ucla-library-storybook-vue3x.netlify.app

[pghorpade]

:tada: This PR is included in version 2.39.0-alpha.36 :tada:

The release is available on:

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

Your semantic-release bot :package::rocket: