fix(ts): make all keys in facetOrdering optional
fix(ts): make all keys in facetOrdering optional

fixes https://github.com/algolia/algoliasearch-helper-js/issues/827

algolia/algoliasearch-client-javascript,algolia/algoliasearch-client-javascript,algolia/algoliasearch-client-javascript,algolia/algoliasearch-client-javascript