load the auth bundle

src/Umbraco.Web.UI.Login/src/controllers/slim-backoffice-initializer.ts

@@ -1,4 +1,5 @@
 import {
+  UmbBundleExtensionInitializer,
   UmbServerExtensionRegistrator
 } from "@umbraco-cms/backoffice/extension-api";
 import { umbExtensionsRegistry } from "@umbraco-cms/backoffice/extension-registry";
@@ -21,6 +22,7 @@ export class UmbSlimBackofficeController extends UmbControllerBase {
 
   constructor(host: UmbElement) {
     super(host);
+    new UmbBundleExtensionInitializer(host, umbExtensionsRegistry);
     new UmbServerExtensionRegistrator(host, umbExtensionsRegistry).registerPublicExtensions();
 
     this.#umbIconRegistry.attach(host);