fix: network chart error text

src/locales/en/translation.json

@@ -93,7 +93,7 @@
     "Network": "Network"
   },
   "monitor": {
-    "noData": "No server monitor data",
+    "noData": "No server monitor data, please add a service monitor first",
     "avgDelay": "Latency",
     "monitorCount": "Services"
   },

src/locales/zh-CN/translation.json

@@ -93,7 +93,7 @@
     "Network": "网络"
   },
   "monitor": {
-    "noData": "没有服务器监控数据",
+    "noData": "没有服务监控数据，请在管理后台服务页添加监控任务",
     "avgDelay": "延迟",
     "monitorCount": "个监控服务"
   },

src/locales/zh-TW/translation.json

@@ -93,7 +93,8 @@
     "network": "網路"
   },
   "monitor": {
-    "noData": "沒有服務器監控數據",
+    "noData": "沒有服務監控數據，請在管理後台服務新增監控任務",
+    "status": "狀態",
     "avgDelay": "延遲",
     "monitorCount": "個監控"
   }