[jsk_fetch_startup] Use email title set by mail_notifier

Author: tkmtnt7000

jsk_fetch_robot/jsk_fetch_startup/apps/go_to_kitchen/go_to_kitchen.app

@@ -149,6 +149,7 @@ plugins:
     plugin_args:
       mail_title: Fetch kitchen patrol demo
       use_timestamp_title: true
+      use_app_start_time: true
     plugin_arg_yaml: /var/lib/robot/fetch_mail_notifier_plugin.yaml
   - name: move_base_cancel_plugin
     type: app_publisher/rostopic_publisher_plugin