Search input display changed

Not so breaking change

• search input now hidden on minimumResults even if search.show is true.
  Previously behavior of search.minimumResults prop wasn't obvious -
  search.show would override it. Now search input will show only when:
  • search.show is true,
  • there are some options passed
  • search.minimumResult prop is set and options.length is equal or more than its value.

Misc

• add prettier for sourcecode