Merge pull request #4788 from guardian/em-remove-use-in-use-ai-search

remove use in use AI search

Author: ellenmuller

kahuna/public/js/search/query.html

@@ -4,7 +4,7 @@
         <label>
             <input type="checkbox"
                    ng-model="searchQuery.useAISearch"/>
-            Use AI search
+            AI search
         </label>
     </span>
     <span class="search-query">