more FA5 stuff with small related refactoring

src/components/search/search.js

@@ -2,6 +2,12 @@ import FollowCard from '../follow_card/follow_card.vue'
 import Conversation from '../conversation/conversation.vue'
 import Status from '../status/status.vue'
 import map from 'lodash/map'
+import { library } from '@fortawesome/fontawesome-svg-core'
+import { faCircleNotch } from '@fortawesome/free-solid-svg-icons'
+
+library.add(
+  faCircleNotch
+)
 
 const Search = {
   components: {