remove unnecessary pages and files that came with the Vike init

pages/index/+Page.tsx

@@ -1,20 +1,11 @@
-import { Counter } from "./Counter.js";
-
 export default function Page() {
   return (
     <>
       <h1
         css={{ fontWeight: "700", fontSize: "1.875rem", paddingBottom: "1rem" }}
       >
-        My Vike app
+        Token-Efficient Context Engineering
       </h1>
-      This page is:
-      <ul>
-        <li>Rendered to HTML.</li>
-        <li>
-          Interactive. <Counter />
-        </li>
-      </ul>
     </>
   );
 }

pages/index/Counter.tsx

@@ -1,25 +0,0 @@
-import { useState } from "react";
-
-export function Counter() {
-  const [count, setCount] = useState(0);
-
-  return (
-    <button
-      type="button"
-      css={{
-        display: "inline-block",
-        border: "1px solid black",
-        borderRadius: "0.25rem",
-        backgroundColor: "#e5e7eb",
-        padding: "4px 8px 4px 8px",
-        fontSize: "0.75rem",
-        fontWeight: "500",
-        textTransform: "uppercase",
-        lineHeight: "1.5",
-      }}
-      onClick={() => setCount((count) => count + 1)}
-    >
-      Counter {count}
-    </button>
-  );
-}