fix: 解决change类型消息显示bug

src/components/NotificationMessageCard/src/components/EventCard.vue

@@ -161,7 +161,7 @@ const jumpTracking = (data: EventCardPropsData) => {
           dayjs(data.info.time).format('MMM DD, YYYY HH:mm')
         }}</span>
         <span>{{ getTimezone(data.info.timezone, data.info.time) }}</span>
-        <span>&nbsp;({{ data.info.delayTimeTip }})</span>
+        <span v-if="data.info.delayTimeTip">&nbsp;({{ data.info.delayTimeTip }})</span>
       </div>
       <!-- <div class="change-time" v-if="data.type === 'change' && data.info?.time">
         <span style="margin-left: 1px" class="font_family icon-icon_time_b"></span>