chore: use module-builder stub mode for more accurate types

[danielroe]

🔗 Linked issue

❓ 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

We added a prepare command for nuxt-module-build which allows creating type stubs directly from the module without needing to apply to the playground as well. (https://github.com/nuxt/module-builder/pull/124)

It's the default for new modules (https://github.com/nuxt/starter/pull/392).

This should allow us to match types more appropriately for module authors (for example, disallowing auto-imports) in future.

Note: I've not updated the root tsconfig.json but you could now extend it from .nuxt/tsconfig.json

📝 Checklist

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