(feature)(webapp) add filter modify and similar questions (#213)

webapp/packages/chat-sdk/src/demo/Chat.tsx

@@ -2,7 +2,7 @@ import { Input } from 'antd';
 import styles from './style.module.less';
 import { useEffect, useState } from 'react';
 import ChatItem from '../components/ChatItem';
-import { queryContext, searchRecommend } from '../service';
+import { searchRecommend } from '../service';
 
 const { Search } = Input;
 

webapp/packages/chat-sdk/src/demo/style.module.less

@@ -10,6 +10,10 @@
   box-sizing: border-box;
 }
 
-.chatDemo {
-  height: 100%;
+.copilotDemo {
+  padding: 20px;
 }
+
+.chatDemo {
+  height: 100vh;
+}