Index: frontend/src/components/Navbar.tsx
===================================================================
--- frontend/src/components/Navbar.tsx	(revision 650c45e5d67db4e6dcb8639ca9b69d914b6ba2aa)
+++ frontend/src/components/Navbar.tsx	(revision 4d64b22c8d886ff0a35373fd17e621c70993ab4a)
@@ -16,5 +16,5 @@
 	const navigate = useNavigate();
 	const profileMenuRef = useRef<HTMLDivElement>(null);
-	const userInitial = user?.full_name.charAt(0).toUpperCase() || "?";
+	const userInitial = user?.full_name.charAt(0).toUpperCase() || "F";
 	// Close dropdown when clicking outside
 	useEffect(() => {
@@ -103,5 +103,5 @@
 				{/* Desktop Menu */}
 				<div className="hidden sm:flex space-x-4 items-center text-sm sm:text-base">
-					<button onClick={testAccountLogin}>quick login</button>
+					{/* <button onClick={testAccountLogin}>quick login</button> */}
 					<Link to="/subjects" className="hover:underline">
 						Предмети