Improve login error message

Update the login error message to be more specific when authentication fails due to incorrect email or password.

src/contexts/AuthContext.tsx

@@ -1,4 +1,9 @@
 
-import { AuthProvider, useAuth } from '@/contexts/auth';
+import React from 'react';
+import { AuthProvider, useAuth } from './auth/AuthProvider';
 
 export { AuthProvider, useAuth };
+
+export default function AuthContextWrapper({ children }: { children: React.ReactNode }) {
+  return <AuthProvider>{children}</AuthProvider>;
+}