Events: Distribute user updates to servers.

Fix: Deleting a server now correctly deletes all associated objects.

src/routes/users/change_username.rs

@@ -62,7 +62,7 @@ pub async fn req(
         }),
         clear: None,
     }
-    .publish(user.id.clone());
+    .publish_as_user(user.id.clone());
 
     Ok(())
 }