fix(showMore): hide showMore when no more facet values to show
fix(showMore): hide showMore when no more facet values to show

If number of facet values is 5 and limit is 5 then we were still
displaying the showMore button.

Now fixed, no added tests, waiting for
https://github.com/algolia/instantsearch.js/pull/948

This is a hotfix

algolia/react-instantsearch,algolia/react-instantsearch,algolia/instantsearch.js,algolia/instantsearch.js,algolia/react-instantsearch,algolia/instantsearch.js,algolia/react-instantsearch