fetch users even when we have some results for better results

src/components/emoji-input/suggestor.js

@@ -85,8 +85,8 @@ export const suggestUsers = data => input => {
     replacement: '@' + screen_name + ' '
   }))
 
-  // BE search users if there are no matches
-  if (newUsers.length === 0 && data.updateUsersList) {
+  // BE search users if there's less matches than we can show
+  if (newUsers.length < 5 && data.updateUsersList) {
     debounceUserSearch(data, noPrefix)
   }
   return newUsers