fix broken spam reporting

src/views/tinode-web.jsx

@@ -1411,7 +1411,7 @@ class TinodeWeb extends React.Component {
       return;
     }
 
-    topic.updateMode(null, '-JP').then((ctrl) => {
+    topic.updateMode(null, '-JP').then(_ => {
       // Hide MessagesView and InfoView panels.
       HashNavigation.navigateTo(HashNavigation.setUrlTopic(window.location.hash, ''));
     }).catch((err) => {
@@ -1426,10 +1426,7 @@ class TinodeWeb extends React.Component {
     }
 
     // Publish spam report.
-    this.tinode.publish(Tinode.TOPIC_SYS, Tinode.Drafty.attachJSON(null, {
-      'action': 'report',
-      'target': topicName
-    }));
+    this.tinode.report('report', topicName);
 
     // Remove J and P permissions.
     topic.updateMode(null, '-JP').then((ctrl) => {