refactor(nuxt)!: cleanup schema and split nuxt 2 types

[pi0]

🔗 Linked issue

Resolves nuxt/nuxt#14135, resolves nuxt/nuxt#15006, resolves nuxt/nuxt#15199

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Initially, we started Nuxt 3 project by documenting all possible configs from Nuxt 2 into @nuxt/schema alongside with @nuxt/bridge code. Over time it becomes both complex to maintain and also confusing UX because you can see auto-completion of options from nuxt.config that are not working with Nuxt 3.

Changes by this PR:

• Nuxt 2 legacy config types are splitted and moving out to nuxt/bridge (feat: add @nuxt/bridge-schema bridge#597)
• Hooks related to Nuxt 2 packages are splitted and moving out to nuxt/bridge (feat: add @nuxt/bridge-schema bridge#597)
• @version filter is removed from schema. Adding back for future schema versioning as @nuxt or @constraints

Breaking changes:

• Unknown and Nuxt2-only options are not allowed in nuxt.config
• serverMiddleware config is not supported anymore (use serverHandlers or devServerHandlers)
• addServerMiddleware kit utility is removed
• webpack:devMiddleware and webpack:hotMiddleware hooks unsupported
• build:compile and build:compiled hooks renamed to webpack:compile and webpack:compiled
• build:resources hook is unsupported (use vite:compiled and webpack:compiled)
• build:before, build:done, modules:before and modules:done take no arguments
• bundler:change, bundler:error, bundler:done and bundler:progress hooks renamed with webpack: prefix
• options.env and options.target, and options.build.quite are not used anymore by webpack builder

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

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[manniL]

This also resolves nuxt/nuxt#15006, right?

[pi0]

(this PR has probably some more breaking changes and unwanted regressions as well. merging earlier to find them out via edge channel)