chore: update import instructions in ExcelImport component and remove newline at end of widget.config.json

Author: xukecheng

src/excel_import.tsx

@@ -90,7 +90,7 @@ export const ExcelImport: React.FC = () => {
  }
  const onImportExcel = (file) => {
  const mention = confirm(
- "Please note: Currently, only append import is supported; the column names in the import file should be exactly the same as those in the table; the Computed, Member, Attachment and Link type field is not supported."
+ "Please note: The column names in the import file should be exactly the same as those in the table; the Computed, Member, Attachment and Link type field is not supported."
  );
 
  // Get the uploaded file object

widget.config.json

@@ -19,4 +19,4 @@
  },
  "globalPackageId": "wpkLtswE2evl5",
  "website": "https://help.aitable.ai/docs/guide/intro-widget-import-from-excel"
-}
+}