add counter component

examples/blog/astro/components/Counter.jsx

@@ -0,0 +1,17 @@
+import React, { useState } from 'react';
+import confetti from 'canvas-confetti';
+
+export default function Counter() {
+  // Declare a new state variable, which we'll call "count"
+  const [count, setCount] = useState(0);
+  console.log(confetti());
+
+  return (
+    <div>
+      <p>You clicked {count} times</p>
+      <button onClick={() => setCount(count + 1)}>
+        Click me
+      </button>
+    </div>
+  );
+}