perf: backup import (#4866)

* i18n

* remove invalid code

* perf: backup import

* backup tip

* fix: indexsize invalid

packages/web/i18n/zh-CN/common.json

@@ -430,7 +430,6 @@
   "core.dataset.Read Dataset": "查看知识库详情",
   "core.dataset.Set Website Config": "开始配置",
   "core.dataset.Start export": "已开始导出",
-  "core.dataset.Table collection": "表格数据集",
   "core.dataset.Text collection": "文本数据集",
   "core.dataset.apiFile": "API 文件",
   "core.dataset.collection.Click top config website": "点击配置网站",
@@ -475,7 +474,7 @@
   "core.dataset.error.unAuthDatasetData": "无权操作该数据",
   "core.dataset.error.unAuthDatasetFile": "无权操作该文件",
   "core.dataset.error.unCreateCollection": "无权操作该数据",
-  "core.dataset.error.unExistDataset": "数据集不存在",
+  "core.dataset.error.unExistDataset": "知识库不存在",
   "core.dataset.error.unLinkCollection": "不是网络链接集合",
   "core.dataset.externalFile": "外部文件库",
   "core.dataset.file": "文件",