feat!: support Nuxt 3

[atinux]

This is a WIP to support Nuxt Bridge and Nuxt 3

To test locally:

yarn install
yarn dev

Current issues:

• nuxt.options.cli.badgeMessages is not supported anymore (https://github.com/nuxt-community/tailwindcss-module/blob/feat/bridge/src/index.ts#L145) (nuxi does not supports badge. since server is shared across nuxt instances)
• FOUC in development and production
• Webpack production build (currently vite is enforced)
• Ensure user is using bridge or Nuxt 3
• Test against Nuxt 3 as well
• Tailwind viewer does not work anymore

Upstream:

• Remove cjs support from @nuxt/kit to avoid version conflict
• Initial version of @nuxt/test-utils for kit support
  • Nitro server-middleware target (rename server and node presets nuxt/nuxt#12799)
• Nitro externals (nft) issue with core-js (resolve path support for vercel/nft nuxt/nuxt#12832)

---

I guess we need to remove process.nuxt(https://github.com/nuxt-community/tailwindcss-module/blob/feat/bridge/src/index.ts#L132) and use the runtimeConfig instead.

[Rigo-m]

A little note for those fighting againt tailwind FOUC with bridge: build: { extractCss: true } can be a quick workaround waiting for the PR to be finished

[pi0]

Closing as is stalled. Will rework in new PR.