fix: #2169 webhooks not firing (#2178)

* fix webhooks not firing due to missing session

* disable webhook test button because it doesnt do anything

* fix background task administration not working at all

* fix error in test

frontend/components/Domain/Group/GroupWebhookEditor.vue

@@ -18,6 +18,8 @@
             icon: $globals.icons.testTube,
             text: $tc('general.test'),
             event: 'test',
+            // TODO: There is no functionality hooked up to this. Enable it when there is
+            disabled: true,
           },
           {
             icon: $globals.icons.save,