fix: 修改项目简介在切换 站点时，图片显示错误的问题

src/pages/system/previews/preview.js

-import React, { useEffect, useState } from 'react';
+import React, { useEffect, useState, useCallback } from 'react';
 import { FullscreenExitOutlined, FullscreenOutlined } from '@ant-design/icons';
 import { notification } from 'antd';
 import classnames from 'classnames';
 import { cloudService } from '@/api';
+import { connect } from 'react-redux';
 import useFullScreen from '../iframe/useFullScreen';
 import styles from './index.less';
 
@@ -14,8 +15,8 @@ const PrevieView = props => {
   const { imgName, accountName, fullscreen, canScroll } = params;
   const [ref, isFullscreen, handleFullScreen, handleExitFullScreen] = useFullScreen(fullscreen);
   const [imgUrl, setImgUrl] = useState('');
-
-  const getImgUrl = () => {
+  const userInfo = props.global?.userInfo;
+  const getImgUrl = useCallback(() => {
     cloudService
       .getAccountPageList({
         pageIndex: 1,
@@ -30,18 +31,18 @@ const PrevieView = props => {
         if (configData.length > 0 && configData[0]['演示图片']) {
           const url = `${window.location.origin}/PandaWorkFlow/WorkFlow/AccountManage/DownloadFiles?filePath=${
             configData[0]['演示图片']
-          }&_site=${window.globalConfig?.userInfo?.site}`;
+          }&_site=${userInfo?.site}`;
           setImgUrl(url);
         }
       })
       .catch(err => {
         notification.error({ message: '提示', duration: 3, description: '获取图片信息错误' });
       });
-  };
+  });
 
   useEffect(() => {
     getImgUrl();
-  }, []);
+  }, [getImgUrl, userInfo]);
 
   return (
     <div className={classnames(styles['tab-preview'], canScroll ? styles['long-img'] : styles['normal-img'])} ref={ref}>
@@ -59,5 +60,7 @@ const PrevieView = props => {
     </div>
   );
 };
-
-export default PrevieView;
+const mapStateToProps = state => ({
+  global: state.getIn(['global', 'globalConfig']),
+});
+export default connect(mapStateToProps)(PrevieView);