Rename .js.es6 to .js in the admin application

app/assets/javascripts/admin/routes/admin-user.js

@@ -0,0 +1,27 @@
+import { get } from "@ember/object";
+import DiscourseRoute from "discourse/routes/discourse";
+import AdminUser from "admin/models/admin-user";
+
+export default DiscourseRoute.extend({
+  serialize(model) {
+    return {
+      user_id: model.get("id"),
+      username: model.get("username").toLowerCase()
+    };
+  },
+
+  model(params) {
+    return AdminUser.find(get(params, "user_id"));
+  },
+
+  renderTemplate() {
+    this.render({ into: "admin" });
+  },
+
+  afterModel(adminUser) {
+    return adminUser.loadDetails().then(function() {
+      adminUser.setOriginalTrustLevel();
+      return adminUser;
+    });
+  }
+});