feat: automatically provide imports object using import map

[pi0]

🔗 Linked issue

❓ 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

Resolves #10

This PR eliminates the need for users to directly pass import objects.

Using imports map, we directly guide rollup to bundle the imports object into the binding.

📝 Checklist

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

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (b06f6f3) 95.27% compared to head (59c24a2) 92.25%.

❗ Current head 59c24a2 differs from pull request most recent head 30ba936. Consider uploading reports for the commit 30ba936 to get more accurate results

Files	Patch %	Lines
src/plugin/runtime.ts	95.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #11      +/-   ##
==========================================
- Coverage   95.27%   92.25%   -3.02%     
==========================================
  Files           6        6              
  Lines         423      478      +55     
  Branches       48       51       +3     
==========================================
+ Hits          403      441      +38     
- Misses         19       36      +17     
  Partials        1        1              

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