Supports obtaining PDF documents from web pages (#1107)

### What problem does this PR solve?

Knowledge base management supports crawling information from web pages
and generating PDF documents

### Type of change
- [x] New Feature (Support document from web pages)

web/src/pages/add-knowledge/components/knowledge-file/web-crawl-modal.tsx

@@ -0,0 +1,54 @@
+import { IModalManagerChildrenProps } from '@/components/modal-manager';
+import { Form, Input, Modal } from 'antd';
+import React from 'react';
+import {useTranslate} from "@/hooks/commonHooks";
+
+
+interface IProps extends Omit<IModalManagerChildrenProps, 'showModal'> {
+  loading: boolean;
+  onOk: (name: string, url: string) => void;
+  showModal?(): void;
+}
+
+const WebCrawlModal: React.FC<IProps> = ({ visible, hideModal, onOk }) => {
+  const [form] = Form.useForm();
+  const { t } = useTranslate('knowledgeDetails');
+  const handleOk = async () => {
+    const values = await form.validateFields();
+    onOk(values.name, values.url);
+  };
+
+  return (
+    <Modal
+      title={t('webCrawl')}
+      open={visible}
+      onOk={handleOk}
+      onCancel={hideModal}
+    >
+      <Form
+        form={form}
+        name="validateOnly"
+        labelCol={{ span: 4 }}
+        wrapperCol={{ span: 20 }}
+        style={{ maxWidth: 600 }}
+        autoComplete="off"
+      >
+        <Form.Item
+          label="Name"
+          name="name"
+          rules={[{ required: true, message: 'Please input name!' },{ max: 10, message: 'The maximum length of name is 128 characters' }]}
+        >
+          <Input placeholder="Document name" />
+        </Form.Item>
+        <Form.Item
+          label="URL"
+          name="url"
+          rules={[{ required: true, message: 'Please input url!' },{pattern: new RegExp('(https?|ftp|file)://[-A-Za-z0-9+&@#/%?=~_|!:,.;]+[-A-Za-z0-9+&@#/%=~_|]'), message: 'Please enter a valid URL!'}]}
+        >
+          <Input placeholder="https://www.baidu.com" />
+        </Form.Item>
+      </Form>
+    </Modal>
+  );
+};
+export default WebCrawlModal;