include stopped servers in user model

opt-in, behind ?include_stopped_servers

Adds `stopped` field to server model to more easily select stopped servers

jsx/src/util/withAPI.js

@@ -4,7 +4,9 @@ import { jhapiRequest } from "./jhapiUtil";
 const withAPI = withProps(() => ({
   updateUsers: (offset, limit, name_filter) =>
     jhapiRequest(
-      `/users?offset=${offset}&limit=${limit}&name_filter=${name_filter || ""}`,
+      `/users?include_stopped_servers&offset=${offset}&limit=${limit}&name_filter=${
+        name_filter || ""
+      }`,
       "GET"
     ).then((data) => data.json()),
   updateGroups: (offset, limit) =>