change the npm to yarn and update the json

ui/lib/fetchNewsData.ts

@@ -0,0 +1,9 @@
+export async function fetchNewsData(id: string) {
+  const response = await fetch(
+    `https://raw.githubusercontent.com/newspedia-crew/newspedia-web/intern-change/public/data/${id}.json`,
+  );
+  if (!response.ok) {
+    return null;
+  }
+  return response.json();
+}