Simplify package "exports"

[omgovich]

A possible solution for #51

Seems like some environments or/and build tools (Webpack?) don't handle "exports" field content properly.

[github-actions]

Size Change: 0 B

Total Size: 8.94 kB

ℹ️ View Unchanged

Filename	Size	Change
./dist/index.js	1.95 kB	0 B
./dist/plugins/a11y.js	459 B	0 B
./dist/plugins/hwb.js	891 B	0 B
./dist/plugins/lab.js	1.03 kB	0 B
./dist/plugins/lch.js	1.43 kB	0 B
./dist/plugins/mix.js	956 B	0 B
./dist/plugins/names.js	1.39 kB	0 B
./dist/plugins/xyz.js	833 B	0 B

_{compressed-size-action}

[codecov-commenter]

Codecov Report

Merging #52 (4fbcd79) into master (2051b61) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #52   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           34        34           
  Lines          422       422           
  Branches        72        72           
=========================================
  Hits           422       422           

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