feat(types): export hook types

[nozomuikuta]

Resolves #134.

Just in case, I ran yarn run test in my local and of course all the tests passed.

[codecov]

Codecov Report

Merging #208 (ea35268) into main (602acf5) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #208   +/-   ##
=======================================
  Coverage   86.04%   86.04%           
=======================================
  Files           7        7           
  Lines         172      172           
  Branches       39       39           
=======================================
  Hits          148      148           
  Misses         24       24           

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