useRef import error 수정

src/components/flight/OperationApprovalsTable.js

@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from 'react';
+import React, { useEffect, useState, useRef } from 'react';
 import { useDispatch, useSelector } from 'react-redux';
 import { Button, Card } from '@component/ui';
 import { openModal } from '@src/redux/features/comn/message/messageSlice';