Feed works with random testposts

code/frontend/src/TestPost.tsx

@@ -0,0 +1,30 @@
+import React, { useMemo } from "react";
+import "./testPost.css";
+
+interface TestPostProps {
+  postId: number;
+}
+
+const getRandomColor = () => {
+  const letters = "0123456789ABCDEF";
+  let color = "#";
+  for (let i = 0; i < 6; i++) {
+    color += letters[Math.floor(Math.random() * 16)];
+  }
+  return color;
+};
+
+const TestPost: React.FC<TestPostProps> = ({ postId }) => {
+  const bgColor = useMemo(() => getRandomColor(), []);
+
+  return (
+    <div
+      className="testPostCard"
+      style={{ backgroundColor: bgColor }}
+    >
+      <span className="testPostNumber">{postId}</span>
+    </div>
+  );
+};
+
+export default TestPost;