feat: Port UserListItem to functional style (#3802)

* feat: Port `UserListItem` to functional style

* Add translation for pending invite

* Add missing translations

* Update `translations.json`

* Revert "Update `translations.json`"

This reverts commit d8000a75105a984f9ee8418b278d93a034ad4adf.

* fix: Incorrect translation strings

Co-authored-by: Tom Moor <tom.moor@gmail.com>

app/scenes/CollectionPermissions/components/UserListItem.tsx

@@ -1,3 +1,4 @@
+import { observer } from "mobx-react";
 import { PlusIcon } from "outline-icons";
 import * as React from "react";
 import { Trans, useTranslation } from "react-i18next";
@@ -45,4 +46,4 @@ const UserListItem = ({ user, onAdd, canEdit }: Props) => {
   );
 };
 
-export default UserListItem;
+export default observer(UserListItem);