Fix: TypeScript error in EmailConfirmation.tsx

The commit addresses a TypeScript error, specifically `TS2304: Cannot find name 'useState'`, encountered in `EmailConfirmation.tsx`.  The change will likely involve importing the `useState` hook from `react`.

src/components/auth/EmailConfirmation.tsx

@@ -1,5 +1,5 @@
 
-import React from "react";
+import React, { useState } from "react";
 import { useNavigate } from "react-router-dom";
 import { Mail, InfoIcon, RefreshCw } from "lucide-react";
 import { Button } from "@/components/ui/button";