Update blog metrics; add vercel imsights

src/components/analytics.tsx

@@ -0,0 +1,11 @@
+import { Analytics } from "@vercel/analytics/react";
+import { SpeedInsights } from "@vercel/speed-insights/react";
+
+export default function VercelAnalytics() {
+  return (
+    <>
+      <Analytics />
+      <SpeedInsights />
+    </>
+  );
+}