fix: initialize nitro app before plugins run

[harlan-zw]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 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 is more of a proof-of-concept to highlight the issue and maybe offer a solution, feel free to close for your own solution.

The issue is that when a plugin wants to make an internal fetch, if that endpoint is using useNitroApp, then it will fail. This is because plugins are ran without the nitroApp context being available.

I've got around it previously using a timeout "hack" (harlan-zw/nuxt-link-checker@646e6ff), but as has been pointed out, this isn't exactly reliable (nuxt-modules/sitemap#149 (comment)).

📝 Checklist

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

[pi0]

Thanks for making PR. Although it is slightly a breaking/risky behavior change i was considering to do similar change also in order to allow async plugins. I will carefully review it soon to make sure we won't break anything before moving forward.

[pi0]

(delaying to next minor) -- update marked as draft to investigate more