Prevent rotating background from shifting layout

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

frontend/src/components/Wireframe.tsx

@@ -3,9 +3,11 @@ import React from "react";
 import styles from "./Wireframe.module.css";
 
 export const Wireframe = () => (
-  <div className={styles.wireframe}>
-    {[...Array(64)].map((_, idx) => (
-      <div key={idx} className={styles.cell} />
-    ))}
+  <div className={styles.decoration}>
+    <div className={styles.wireframe}>
+      {[...Array(64)].map((_, idx) => (
+        <div key={idx} className={styles.cell} />
+      ))}
+    </div>
   </div>
 );