Refactor AuthContext into smaller files

Refactors the AuthContext.tsx file into smaller, more manageable files to improve code organization and maintainability. The functionality remains the same.

src/pages/ForgotPassword.tsx

@@ -1,11 +1,10 @@
-
 import React, { useState } from "react";
 import { Link } from "react-router-dom";
 import { Label } from "@/components/ui/label";
 import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { ArrowLeft, Mail, ArrowRight } from "lucide-react";
-import { useAuth } from "@/contexts/AuthContext";
+import { useAuth } from "@/contexts/auth";
 
 const ForgotPassword = () => {
   const [email, setEmail] = useState("");