Update ChatService.tsx

Author: 16adianay

React/src/ChatService.tsx

@@ -1,5 +1,5 @@
 import { type ChatTypes } from 'devextreme-react/chat';
-import { DataSource, CustomStore } from "devextreme-react/common/data"
+import { DataSource, CustomStore } from 'devextreme-react/common/data';
 import { OpenAI } from 'openai';
 import { BehaviorSubject, Observable } from 'rxjs';
 import { ALERT_TIMEOUT, assistant, OpenAIConfig } from './data.ts';