Early App update: Hello World --> 3 boxes (#478)

Boxes!

Author: DominicS99

workspaces/simon-game/src/app/components/App.tsx

@@ -1,5 +1,13 @@
 import React from "react";
 
 export function App() {
-  return <div>Hello World!</div>;
+  return (
+    <div>
+      <div
+        style={{ backgroundColor: "lightblue", height: 100, width: 100 }}
+      ></div>
+      <div style={{ backgroundColor: "orange", height: 100, width: 100 }}></div>
+      <div style={{ backgroundColor: "green", height: 100, width: 100 }}></div>
+    </div>
+  );
 }