Remove export code

[cap-Bernardito]

This PR contains a:

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

Motivation / Use-Case

Remove export code

Breaking Changes

Yes.

Additional Info

if you want to get сss, use css-loader. In other cases, you can use raw-loader.

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Loader should not change type of output based on index in loaders, it is not cacache, and can lead to very strange errors

[codecov]

Codecov Report

Merging #439 into master will increase coverage by 0.61%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #439      +/-   ##
==========================================
+ Coverage   92.12%   92.74%   +0.61%     
==========================================
  Files           5        5              
  Lines         127      124       -3     
  Branches       38       37       -1     
==========================================
- Hits          117      115       -2     
+ Misses         10        9       -1     

Impacted Files	Coverage Δ
src/index.js	89.65% <ø> (+0.76%)	⬆️

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