Add Ajax Search Support to the Kadence Query Loop (Adv) Block Filter Search#36

The Query Loop (Adv) block’s filter search currently requires pressing Enter or clicking the icon; requesting Ajax-powered live search results as users type. (Migrated from featureOS: https://feedback.kadencewp.com/p/add-ajax-search-support-to-the-kadence-query-loop-adv-block-filter-search)