Upgrade to PayloadCMS v3

Changelog:

• Updated to the latest release of PayloadCMS v3
  Bringing the project up to date with the latest features, improvements, and fixes from PayloadCMS v3.

• Updated the test app in the dev folder
  Refined the test application to ensure compatibility with recent changes and updates.

• Improved rendering of the item list
  Enhanced the performance and display of the item list, providing a smoother user experience.

• Optimized React Server Components usage
  Streamlined the use of React Server Components for better performance and scalability.

• Updated styling
  Applied updated styles for a more modern and consistent look throughout the app.

0.0.2

• Resolve issues with toggle button functionality
• Implement toggle feature for switching to default table view
• Enhance styling for nested child elements