feat(firebase): support renaming exported server function

[AlexLavoie42]

🔗 Linked issue

#266

❓ 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

Adds a new option to nitro config that allows giving a custom name to deployed firebase functions.

This is done using rollup replace. I changed the exported name for the server in the firebase entry to __firebaseServerFunctionName__ to ensure it is unique to the firebase server export. The placeholder name is then replaced with firebase.serverFunctionName in the config, which is given a default value of "server".

This change gives an intuitive way to deploy multiple servers to the same firebase project without having them be overwritten. The workaround given in #266 is not very intuitive, and could potentially break other deployments in the future.

I would also recommend adding the same option to V2 functions in #1142, since there doesn't appear to be a way to change the deployed function name in the V2 HttpOptions (I don't think labels does this, but correct me if I am wrong)

Resolves #266

📝 Checklist

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

I have tested building my own project and the function renaming appears to work as expected. The only difference is that export { s as server } from './chunks/nitro/firebase.mjs' becomes export { _ as server } from './chunks/nitro/firebase.mjs' since the export now starts with _ before the placeholder gets replaced. I don't think this will cause any issues, but I am not 100% sure.

[nuxt-studio]

✅ Live Preview ready!

Name	Edit	Preview	Latest Commit
nitro	Edit on Studio ↗︎	View Live Preview	ae1cc96

[Hebilicious]

This is looking good thanks ! Let's wait until #1142 is merged before moving forward with that one.

[codecov]

Codecov Report

Merging #1377 (7ddc037) into main (a04c663) will increase coverage by 0.05%.
The diff coverage is 85.71%.

❗ Current head 7ddc037 differs from pull request most recent head ae1cc96. Consider uploading reports for the commit ae1cc96 to get more accurate results

@@            Coverage Diff             @@
##             main    #1377      +/-   ##
==========================================
+ Coverage   76.54%   76.60%   +0.05%     
==========================================
  Files          76       71       -5     
  Lines        7773     7248     -525     
  Branches      784      722      -62     
==========================================
- Hits         5950     5552     -398     
+ Misses       1821     1694     -127     
  Partials        2        2              

Files Changed	Coverage Δ
src/rollup/config.ts	89.75% <50.00%> (-1.77%)	⬇️
src/options.ts	94.40% <100.00%> (-2.25%)	⬇️

... and 31 files with indirect coverage changes

[pi0]

Thanks for the PR 💚 I have rebased it and updated implementation to match the latest requirements