Fix: Knowledge base page cannot upload folders #6062 (#6096)

### What problem does this PR solve?

Fix: Knowledge base page cannot upload folders #6062

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/components/delimiter.tsx

@@ -30,7 +30,7 @@ const Delimiter = () => {
     <Form.Item
       name={['parser_config', 'delimiter']}
       label={t('knowledgeDetails.delimiter')}
-      initialValue={`\\n!?;。；！？`}
+      initialValue={`\n`}
       rules={[{ required: true }]}
       tooltip={t('knowledgeDetails.delimiterTip')}
     >