refactor: remove unused query handling code

  - Remove useHandleAIQuery and useGetLastUserQuery hooks (unused by flows)
  - Fix missing semicolon in useChatBotSettings import
  - Both QA and metrics flows handle API calls directly with their own UUIDs

Author: bacalj

src/hooks/useChatBotSettings.js

@@ -3,7 +3,7 @@ import { DEFAULT_CONFIG } from '../config/constants';
 import NewChatButton from '../components/NewChatButton';
 import UserIcon from '../components/UserIcon';
 import LoginButton from '../components/LoginButton';
-import { Button } from "react-chatbotify"
+import { Button } from "react-chatbotify";
 
 /**
  * Custom hook to generate ChatBot settings