Refresh packed filesystems

examples/uart-bridge/net.c

@@ -97,7 +97,7 @@ void uart_bridge_fn(struct mg_connection *c, int ev, void *ev_data,
           s_tcp_url, s_ws_url, s_rx, s_tx, s_baud);
     } else {
       struct mg_http_serve_opts opts = {0};
-#if 0
+#if 1
       opts.root_dir = "/web_root";
       opts.fs = &mg_fs_packed;
 #else