feat(buttons): added flame and down button

web-app/src/components/ui/button/down-button.jsx

@@ -0,0 +1,10 @@
+import React from "react";
+import { ArrowDown } from "lucide-react";
+
+export default function DownButton({ onClick }) {
+  return (
+    <button onClick={onClick} className="bg-gray-700 p-2 rounded-2xl">
+      <ArrowDown />
+    </button>
+  );
+}