jsx: update and address eslint

add script to top-level package.json to run eslint in subdir

jsx/src/util/jhapiUtil.js

@@ -1,3 +1,5 @@
+import PropTypes from "prop-types";
+
 const jhdata = window.jhdata || {};
 const base_url = jhdata.base_url || "/";
 const xsrfToken = jhdata.xsrf_token;
@@ -17,3 +19,21 @@ export const jhapiRequest = (endpoint, method, data) => {
     body: data ? JSON.stringify(data) : null,
   });
 };
+
+// need to declare the subset of fields we use, at least
+export const Server = PropTypes.shape({
+  name: PropTypes.string,
+  url: PropTypes.string,
+  active: PropTypes.boolean,
+  pending: PropTypes.string,
+  last_activity: PropTypes.string,
+});
+
+export const User = PropTypes.shape({
+  admin: PropTypes.boolean,
+  name: PropTypes.string,
+  last_activity: PropTypes.string,
+  url: PropTypes.string,
+  server: Server,
+  servers: PropTypes.objectOf(Server),
+});