feat: APPS-2564 convert flexible-simple-cards component to vue3

[sourcefilter]

Connected to APPS-2564

https://deploy-preview-459--ucla-library-storybook-vue3x.netlify.app/

Component Created: Flexible/SimpleCards.vue

Stories: ~/stories/Flexible_SimpleCards.stories.js

Spec: ~/stories/Flexible_SimpleCards.spec.js

Registered in src/lib-components/index.js:
export { default as FlexibleSimpleCards } from './Flexible/SimpleCards.vue'

Notes:

Updates need to be made so that an Event will show up properly. title = eventTitle text = eventDescription

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
• [x] I added a screenshot of it working
• [x] 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]]

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[github-actions[bot]]

🚀 Deployed on https://deploy-preview-459--ucla-library-storybook-vue3x.netlify.app

[pghorpade]

:tada: This PR is included in version 2.39.0-alpha.46 :tada:

The release is available on:

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

Your semantic-release bot :package::rocket: