회원가입 화면 useState 버그 수정

frontend/src/auth/signup.tsx

 import React, { FormEvent, useEffect, useState } from "react";
-import { Link, useNavigate } from "react-router-dom";
+import { Link, Navigate } from "react-router-dom";
 import { authApi } from "../apis";
 import { catchErrors } from "../helpers";
 import { SpinnerIcon } from "../icons";
@@ -17,7 +17,6 @@ export default function Signup() {
   const [error, setError] = useState("");
   const [disabled, setDisabled] = useState(false);
   const [success, setSuccess] = useState(false);
-  const navigate = useNavigate();
 
   useEffect(() => {
     setDisabled(!(user.name && user.email && user.password && user.password2));
@@ -65,7 +64,7 @@ export default function Signup() {
 
   if (success) {
     alert("회원가입 되었습니다");
-    navigate("/login", { replace: true });
+    return <Navigate to={"/login"} replace />;
   }
 
   return (