Make response data refresh interval configurable

src/lib/data.ts

@@ -22,8 +22,5 @@ export async function getSampleData(): Promise<ResponseData[]> {
       });
     });
   }
-  // Simulate a delay to mimic fetching actual data
-  return new Promise<ResponseData[]>((resolve) => {
-    setTimeout(() => resolve(sampleData), 500);
-  });
+  return Promise.resolve(sampleData);
 }