Recovered from backup

frontend/src/components/ThemeButton.jsx

@@ -0,0 +1,12 @@
+import { useTheme } from "../contexts/ThemeContext.jsx";
+import "../css/ThemeButton.css";
+
+export default function ThemeButton() {
+    const { theme, toggleTheme } = useTheme();
+
+    return (
+        <button className="theme-toggle" onClick={toggleTheme}>
+            {theme === "dark" ? "☀️" : "🌙"}
+        </button>
+    );
+}