feat: dev server with serve static support

[pi0]

🔗 Linked issue

resolves #38

❓ 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

Lots of reactors on watcher implementation + ability to automatically serve public directory in server directory.

📝 Checklist

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

[codecov]

Codecov Report

Merging #83 (ddd7759) into main (d5bf13e) will decrease coverage by 2.88%.
The diff coverage is 11.14%.

❗ Current head ddd7759 differs from pull request most recent head 3d27618. Consider uploading reports for the commit 3d27618 to get more accurate results

@@            Coverage Diff             @@
##             main      #83      +/-   ##
==========================================
- Coverage   45.93%   43.06%   -2.88%     
==========================================
  Files           7       10       +3     
  Lines        1082     1189     +107     
  Branches       55       55              
==========================================
+ Hits          497      512      +15     
- Misses        585      677      +92     

Files Changed	Coverage Δ
src/_utils.ts	100.00% <ø> (+28.71%)	⬆️
src/types.ts	100.00% <ø> (ø)
src/server/_resolver.ts	6.06% <6.06%> (ø)
src/server/dev.ts	7.94% <7.94%> (ø)
src/server/watcher.ts	18.29% <18.29%> (ø)
src/index.ts	100.00% <100.00%> (ø)
src/server/index.ts	100.00% <100.00%> (ø)