change default example back to paginator

simpler to understand though not as wow

src/client/ui/App.tsx

···
     };
   }
 
-  const defaultSample = SAMPLES.refresh as Sample;
+  const defaultSample = SAMPLES.pagination as Sample;
   return {
     server: defaultSample.server,
     client: defaultSample.client,
-    sampleKey: "refresh",
+    sampleKey: "pagination",
   };
 }