more FA5 stuff with small related refactoring

src/components/status_popover/status_popover.js

@@ -1,4 +1,10 @@
 import { find } from 'lodash'
+import { library } from '@fortawesome/fontawesome-svg-core'
+import { faCircleNotch } from '@fortawesome/free-solid-svg-icons'
+
+library.add(
+  faCircleNotch
+)
 
 const StatusPopover = {
   name: 'StatusPopover',