Update Dependencies to resolve security vulns

[LadyKerr]

The most important changes include updating the header links, replacing anchor tags with Link components in the EventDetail and EventsList components, and updating the minimum required Node.js version in the build and test workflows.

Highlights:

• As of Jest 28 "jest-environment-jsdom" is no longer shipped by default, and needs to be installed as a dev dependency
• Starting with Next.js 13, renders as , so I updated all components to remove <a> tag as a child of <Link>
• next export has been removed in favor of "output": "export", so I updated next.config
• update node version in workflows

Main interface changes:

• components/header/Header.jsx: Updated header links to improve accessibility and styling. [1] [2]
• components/event-detail/EventDetail.jsx: Replaced anchor tags with Link components in EventDetail component.
• components/events-list/EventsList.jsx: Improved accessibility and user experience by replacing an anchor tag with a Link component and adding a class to the "View more" link. [1] [2]

Configuration improvements:

• .github/workflows/build-deploy.yml: Updated minimum Node.js version to 18.17.0 in build-deploy.yml file.
• .github/workflows/test.yml: Updated minimum required Node.js version to 18.17.0 in test.yml file.

Dependency updates:

• package.json: Updated dependencies to newer versions.
• Main updates: react v18, react-dom v18, jest v29 and next v14

[mvkaran]

LGTM