chore: upgrade dependencies and make package ESM only

[stropitek]

eslint flat config, tsconfig, jest => vitest

BREAKING-CHANGE: no CJS exported by the package anymore

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.02%. Comparing base (c01ba43) to head (1e2f198).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #57      +/-   ##
==========================================
- Coverage   83.82%   81.02%   -2.80%     
==========================================
  Files          13       11       -2     
  Lines         272      253      -19     
  Branches       43       45       +2     
==========================================
- Hits          228      205      -23     
- Misses         44       47       +3     
- Partials        0        1       +1     

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[targos]

What you did is not really wrong but weirdly a bit different from our common practices. What did you use as a reference?

[stropitek]

What you did is not really wrong but weirdly a bit different from our common practices. What did you use as a reference?

I usually use https://github.com/cheminfo/generator-cheminfo/blob/main/ts-migration.md as reference but not this time (I guess because I felt confident doing it without a guide, and because it was already in TS).