feat(types): correctly type $fetch based on the method

[dsluijk]

🔗 Linked issue

#685

❓ 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

This feature fixed the types of the routes when used with $fetch, when there are multiple handlers with different methods for the same route. It detects the method given with the options, and returns the correct set of types for that call. This also works if you don't specify a method or if the handler does not specify a method.

This might be a breaking change, as it changes the format of InternalApi.

📝 Checklist

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

I don't think a documentation update is needed here.

[dsluijk]

I've fixed the failing test and added a few new ones to assert the new types. The method option in a request is now also typed correctly with the methods available.

[codecov]

Codecov Report

Merging #686 (3524149) into main (821b773) will decrease coverage by 4.94%.
The diff coverage is 82.97%.

❗ Current head 3524149 differs from pull request most recent head 9cff984. Consider uploading reports for the commit 9cff984 to get more accurate results

@@            Coverage Diff             @@
##             main     #686      +/-   ##
==========================================
- Coverage   72.01%   67.07%   -4.95%     
==========================================
  Files          57       57              
  Lines        5050     4267     -783     
  Branches      546      462      -84     
==========================================
- Hits         3637     2862     -775     
+ Misses       1403     1402       -1     
+ Partials       10        3       -7     

Impacted Files	Coverage Δ
src/build.ts	40.20% <52.94%> (-9.51%)	⬇️
src/types/fetch.ts	100.00% <100.00%> (ø)
src/presets/firebase.ts	30.52% <0.00%> (-67.64%)	⬇️
src/dev/server.ts	21.15% <0.00%> (-50.34%)	⬇️
src/presets/azure-functions.ts	26.02% <0.00%> (-7.76%)	⬇️
src/presets/cloudflare.ts	47.72% <0.00%> (-7.63%)	⬇️
src/rollup/plugins/replace.ts	76.47% <0.00%> (-6.14%)	⬇️
src/scan.ts	59.30% <0.00%> (-6.05%)	⬇️
src/utils/index.ts	47.20% <0.00%> (-4.63%)	⬇️
... and 32 more

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[danielroe]

This looks very nice - thanks! 😊