feat: export all types

[bounoable]

❓ 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

I'm building a library around ofetch that needs defines custom fetch functions with the same signature as ofetch, so ideally I would have access to these types to define the function. My current workaround is to copy-paste the types into the library but this doesn't feel quite right.

If there's a reason for these types to not be exported, just close this PR and I will stick to the workaround 👍🏼

📝 Checklist

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

[AdoKevin]

I'm really looking forward to this PR being accepted. I've encountered the same issue myself. Directly copying the type definitions does seem a bit strange.

[codecov]

Codecov Report

Merging #280 (ab0dcb7) into main (3a73165) will decrease coverage by 1.47%.
The diff coverage is 100.00%.

❗ Current head ab0dcb7 differs from pull request most recent head 42dd069. Consider uploading reports for the commit 42dd069 to get more accurate results

@@            Coverage Diff             @@
##             main     #280      +/-   ##
==========================================
- Coverage   93.46%   92.00%   -1.47%     
==========================================
  Files           5        5              
  Lines         551      450     -101     
  Branches      102      102              
==========================================
- Hits          515      414     -101     
  Misses         36       36              

Files	Coverage Δ
src/error.ts	96.96% <100.00%> (-0.60%)	⬇️
src/fetch.ts	95.39% <100.00%> (-1.07%)	⬇️
src/utils.ts	95.04% <100.00%> (-0.57%)	⬇️

[pi0]

Thanks for the PR! I have rewrote on top of your work to export more type exports.