fix: update import statement for usersResource to include file extension

Author: NoOne7135

adminforth/commands/createApp/templates/index.ts.hbs

@@ -1,6 +1,6 @@
 import express from 'express';
 import AdminForth, { Filters } from 'adminforth';
-import usersResource from "./resources/adminuser";
+import usersResource from "./resources/adminuser.js";
 
 const ADMIN_BASE_URL = '';