feat: Hide search tab infiniflow#2247 (infiniflow#2322)

### What problem does this PR solve?

feat: Hide search tab infiniflow#2247

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/layouts/components/header/index.tsx

@@ -4,7 +4,7 @@ import { ReactComponent as KnowledgeBaseIcon } from '@/assets/svg/knowledge-base
 import { useTranslate } from '@/hooks/common-hooks';
 import { useFetchAppConf } from '@/hooks/logic-hooks';
 import { useNavigateWithFromState } from '@/hooks/route-hook';
-import { MessageOutlined, SearchOutlined } from '@ant-design/icons';
+import { MessageOutlined } from '@ant-design/icons';
 import { Flex, Layout, Radio, Space, theme } from 'antd';
 import { useCallback, useMemo } from 'react';
 import { useLocation } from 'umi';
@@ -27,7 +27,7 @@ const RagHeader = () => {
     () => [
       { path: '/knowledge', name: t('knowledgeBase'), icon: KnowledgeBaseIcon },
       { path: '/chat', name: t('chat'), icon: MessageOutlined },
-      { path: '/search', name: t('search'), icon: SearchOutlined },
+      // { path: '/search', name: t('search'), icon: SearchOutlined },
       { path: '/flow', name: t('flow'), icon: GraphIcon },
       { path: '/file', name: t('fileManager'), icon: FileIcon },
     ],