Add Teardown code

src/components/3d/PublicPreview.svelte

@@ -37,6 +37,7 @@
     let renderer: THREE.WebGLRenderer;
     let controls: OrbitControls;
     let light: THREE.AmbientLight;
+    let observer: ResizeObserver;
 
     onMount(() => {
         scene = new THREE.Scene();
@@ -70,7 +71,8 @@
         light = new THREE.AmbientLight(0xffffff, 1);
         scene.add(light);
 
-        new ResizeObserver(handleResize).observe(div);
+        observer = new ResizeObserver(handleResize);
+        observer.observe(div);
 
 
         loaded = true;
@@ -91,6 +93,9 @@
         if (loaded) {
             loaded = false;
 
+            observer.unobserve(div);
+            observer.disconnect();
+
             renderer.dispose();
             scene.clear();
             light.dispose();