no separate login/register page, use modal throughout

frontend/src/components/Navbar.tsx

@@ -1,15 +1,10 @@
 import React, { useState } from "react";
 import { Link, useNavigate } from "react-router-dom";
 import { useAuth } from "../contexts/AuthContext";
-import AuthModal from "./AuthModal";
 
 const Navbar: React.FC = () => {
-  const { user, logout } = useAuth();
+  const { user, logout, openAuthModal } = useAuth();
   const navigate = useNavigate();
-  const [showAuthModal, setShowAuthModal] = useState(false);
-  const [authModalMode, setAuthModalMode] = useState<"login" | "signup">(
-    "login"
-  );
   const [searchFilters, setSearchFilters] = useState({
     search: "",
     location: "",
@@ -20,11 +15,6 @@ const Navbar: React.FC = () => {
     navigate("/");
   };
 
-  const openAuthModal = (mode: "login" | "signup") => {
-    setAuthModalMode(mode);
-    setShowAuthModal(true);
-  };
-
   const handleSearch = (e: React.FormEvent) => {
     e.preventDefault();
     const params = new URLSearchParams();
@@ -204,12 +194,6 @@ const Navbar: React.FC = () => {
           </div>
         </div>
       </nav>
-
-      <AuthModal
-        show={showAuthModal}
-        onHide={() => setShowAuthModal(false)}
-        initialMode={authModalMode}
-      />
     </>
   );
 };