feat:告警日期默认当月

src/views/device/alerts/index.vue

@@ -23,8 +23,8 @@ const getSiteList = async () => {
 
 // 日期选择器相关
 const now = dayjs()
-const startOfToday = now.startOf('day')
+const startOfMonth = now.startOf('month')
-const dateRange = ref<[any, any]>([startOfToday, now])
+const dateRange = ref<[any, any]>([startOfMonth, now])
 
 // 告警相关
 const activeMainTab = ref('Alerts')