jetzt syntax korrekt

js/src/forum/addTeamsSettings.js

@@ -27,12 +27,14 @@ class TeamsSettingsBlock extends Component {
             'sbp-jm-msteams.types.newPost',
             'Someone replies to a discussion I am following'
           )}
+
           {this.prefSwitch(
             user,
             prefs,
             'sbp-jm-msteams.types.postMentioned',
             'Someone mentions me in a post'
           )}
+
           {this.prefSwitch(
             user,
             prefs,
@@ -44,23 +46,25 @@ class TeamsSettingsBlock extends Component {
     );
   }
 
-prefSwitch(user, prefs, key, label) {
+  prefSwitch(user, prefs, key, label) {
     return (
       <Switch
         state={!!prefs[key]}
-      onchange={(value) =>
+        onchange={(value) => {
           user.savePreferences({
             [key]: value,
-        })
-      }
+          });
+        }}
       >
         {label}
       </Switch>
     );
+  }
 }
 
 export default function addTeamsSettings() {
   extend(SettingsPage.prototype, 'content', function (vnode) {
+    // content ist in Flarum 1.x ein VNode mit children[]
     vnode.children.push(<TeamsSettingsBlock />);
   });
 }