refactor: replace clock with Timer for animation updates

src/script.js

@@ -1,5 +1,6 @@
 import * as THREE from 'three'
 import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js'
+import { Timer } from 'three/examples/jsm/misc/Timer.js'
 
 /**
  * Base
@@ -49,11 +50,13 @@ renderer.setSize(sizes.width, sizes.height)
 /**
  * Animate
  */
-const clock = new THREE.Clock()
+const timer = new Timer()
+timer.connect(document) // pause otomatis saat tab tidak aktif
 
 const tick = () =>
 {
-    const elapsedTime = clock.getElapsedTime()
+    timer.update()
+    const elapsedTime = timer.getElapsed()
 
     // Update controls
     controls.update()