fix(prerender): update preview command to serve matching routes

[danielroe]

🔗 Linked issue

nuxt/nuxt#14454

❓ 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

There is a bug in serve -s that renders all responses, not just 404s, with base index.html: vercel/serve#722. This PR removes the flag. 404s will now be rendered with /404.html, which Nuxt now outputs, so this should not have any downside downstream on Nuxt - or, I think, in any other project depending on this.

📝 Checklist

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

[codecov]

Codecov Report

Merging #864 (a6fd2f8) into main (63e250d) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #864   +/-   ##
=======================================
  Coverage   67.13%   67.13%           
=======================================
  Files          59       59           
  Lines        5785     5785           
  Branches      614      614           
=======================================
  Hits         3884     3884           
  Misses       1893     1893           
  Partials        8        8           

Impacted Files	Coverage Δ
src/presets/nitro-prerender.ts	100.00% <100.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.