Update Laravel using latest version and assets deployment example

[cmizzi]

This PR deploys a fresh Laravel 10.x installation, with complete examples and documentation about how to deploy a sample application to Vercel with custom assets (CSS/JS). This example bypasses vercel-php for assets by using vercel-static runtime to serve quickly assets.

An endpoint is available to test the static files: /vercel. It will load CSS and JS bundles (TailwindCSS).