NEZ-1139 fix： Alert rule页面，Default snmptrap报警规则，查看报警页面一直显示加载中

nezha-fronted/src/components/common/bottomBox/tabs/alertMessageTabNew.vue

@@ -455,6 +455,9 @@ export default {
       this.deleteBox.show = true
     },
     messageDetail (row) {
+      if (row.alertRule.type == 3) {
+        return
+      }
       this.$get('/alert/rule/' + row.alertRule.id).then(res => {
         this.currentMsg = { ...row, alertRule: { ...res.data } }
         this.graphShow = true