refactor: drop cjs wrapper

[alexander-akait]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

improve types DX

Breaking Changes

Potentially yes, but we use babel and our code in commonjs format, so we should generate types in the same format

Additional Info

No

[codecov]

Codecov Report

Merging #654 (54be273) into master (d6a6cdb) will increase coverage by 0.22%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #654      +/-   ##
==========================================
+ Coverage   89.94%   90.17%   +0.22%     
==========================================
  Files           3        2       -1     
  Lines         388      397       +9     
  Branches      119      119              
==========================================
+ Hits          349      358       +9     
  Misses         38       38              
  Partials        1        1              

Impacted Files	Coverage Δ
src/index.js	90.16% <100.00%> (+0.28%)	⬆️
src/utils.js	90.24% <100.00%> (+0.24%)	⬆️

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