Fix generational box in release mode

packages/desktop/src/launch.rs

@@ -30,7 +30,7 @@ pub fn launch_virtual_dom_blocking(virtual_dom: VirtualDom, desktop_config: Conf
                 EventData::Poll => app.poll_vdom(id),
                 EventData::NewWindow => app.handle_new_window(),
                 EventData::CloseWindow => app.handle_close_msg(id),
-                #[cfg(feature = "hot-reload")]
+                #[cfg(all(feature = "hot-reload", debug_assertions))]
                 EventData::HotReloadEvent(msg) => app.handle_hot_reload_msg(msg),
                 EventData::Ipc(msg) => match msg.method() {
                     IpcMethod::FileDialog => app.handle_file_dialog_msg(msg, id),