Added login failed alert

src/components/Login.js

@@ -1,29 +1,38 @@
 // src/components/Login.js
 import React, { useState } from 'react';
-import { Button, TextField, Container, Typography } from '@mui/material';
+import { Button, TextField, Container, Typography, Alert } from '@mui/material';
 import axios from 'axios';
 import { useNavigate } from 'react-router-dom'; // Import useNavigate
 
 export default function Login({ setToken }) {
   const [username, setUsername] = useState('');
   const [password, setPassword] = useState('');
+  const [loginError, setLoginError] = useState(false); // State for login error
   const navigate = useNavigate(); // Initialize useNavigate
+
   const handleLogin = async (e) => {
     e.preventDefault();
+    setLoginError(false); // Reset error state on each login attempt
     try {
       // eslint-disable-next-line no-template-curly-in-string
-
       const response = await axios.post(`${process.env.REACT_APP_API_URL}/login`, { username, password });
-      setToken(response.data.token);  // Store the token in state or context
-      navigate('/boxes'); //redirect to /boxes after successful login
+      setToken(response.data.token); 
+      navigate('/boxes'); 
     } catch (error) {
       console.error('Login failed', error);
+      setLoginError(true); // Set error state if login fails
     }
   };
 
   return (
     <Container maxWidth="xs">
       <Typography variant="h4" gutterBottom>Login</Typography>
+
+      {/* Display error message if loginError is true */}
+      {loginError && (
+        <Alert severity="error">Login Failed</Alert>
+      )}
+
       <form onSubmit={handleLogin}>
         <TextField
           label="Username"