fix(nuxt): ensure static presets equivalent to nuxi generate

[danielroe]

🔗 Linked issue

resolves #21254

❓ 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)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This finishes the second task on #21254. Previous we enabled static nitro preset in nuxi generate (#21655), but this follows up to ensure that running nuxi build --prerender (or NITRO_PRESET=static nuxi build have the same behaviour.

From this point, we no longer use options._generate flag but directly access nitro.options.static. We can remove the internal ._generate flag in a future minor release.

📝 Checklist

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

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[pi0]

Nice changes

[Hebilicious]

Does this means that nuxi generate is now strictly an alias of nuxi build --prerender ?

[danielroe]

Yes 👍