feat(cloudflare-pages): rewrite with module syntax

[pi0]

🔗 Linked issue

❓ 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 PR introduces several improvements to the (currently experimental) cloudflare pages preset using module syntax and advanced mode _worker.js output.

While testing, I noticed zero-configs is broken with dist link (it was only supported for Nuxt also since it was doing dist symlinking and has it as default in CF pages). New output used top-level dist instead of .output/public also making it more consistent with their other FW presets. This is a slightly breaking change for the experimental preset if .output/public was hardcoded should be changed to dist

Next steps: Supporting _redirects and _headers

Also new in this preset: We use local fetch to directly generate response. it should make normalization more consistent in single place (in unenv

📝 Checklist

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

[codecov]

Codecov Report

Merging #1004 (dc27eb9) into main (c4fcbb1) will decrease coverage by 0.11%.
The diff coverage is 85.56%.

@@            Coverage Diff             @@
##             main    #1004      +/-   ##
==========================================
- Coverage   67.69%   67.59%   -0.11%     
==========================================
  Files          60       61       +1     
  Lines        6167     6171       +4     
  Branches      692      693       +1     
==========================================
- Hits         4175     4171       -4     
- Misses       1982     1989       +7     
- Partials       10       11       +1     

Impacted Files	Coverage Δ
src/presets/cloudflare-pages.ts	85.26% <85.26%> (ø)
src/presets/cloudflare.ts	80.00% <100.00%> (-7.18%)	⬇️
src/presets/index.ts	100.00% <100.00%> (ø)
src/rollup/config.ts	87.44% <0.00%> (-0.89%)	⬇️

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[pi0]

Waiting for CI

[altryne]

Will this now enable folks who use the regular cloudflare preset to also get access to cloudflare ENV and bindings? 🙏

[dario-piotrowicz]

@altryne yes if you use the pages adaptor, I don't think the improvement has been applied on the worker one (as you can see from #1054)