Put script in onload and updated texture of globe

apps/etymology map game.html

@@ -102,6 +102,7 @@ <h1>Etymology Globe Game</h1>
 
   <!-- Your game script -->
   <script>
+  window.onload = function() {
     // Words data with 'continent' property added
     const words = [
       // [Include all your word objects here]
@@ -337,7 +338,7 @@ <h1>Etymology Globe Game</h1>
     // Initialize the globe
     const myGlobe = Globe()
       .backgroundColor('#111')
-      .globeImageUrl('//unpkg.com/three-globe/example/img/earth-dark.jpg') // Optional built-in texture
+      .globeImageUrl('//unpkg.com/three-globe/example/img/earth-blue-marble.jpg') // Optional built-in texture
       .pointOfView({ lat: 20, lng: 0, altitude: 2 });
 
     const globeContainer = document.getElementById('globeViz');
@@ -451,6 +452,7 @@ <h1>Etymology Globe Game</h1>
       const wordObj = words[currentWordIndex];
       document.getElementById('hint').innerText = `Hint: The origin is in ${wordObj.continent}.`;
     }
+  }
   </script>
 </body>
 </html>