fix: npm publish files

[shaodahong]

Ref: react-component/mentions#18 (comment)

[vercel]

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[codecov]

Codecov Report

Merging #149 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #149   +/-   ##
=======================================
  Coverage   83.69%   83.69%           
=======================================
  Files           7        7           
  Lines         460      460           
  Branches      122      122           
=======================================
  Hits          385      385           
  Misses         75       75

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