refactor(core): use watcheffect to observe node dimensions

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>

packages/core/src/components/Nodes/NodeWrapper.vue

@@ -88,13 +88,16 @@ onUpdateNodeInternals((updateIds) => {
   }
 })
 
-onMounted(() => {
-  props.resizeObserver.observe(nodeElement.value as HTMLDivElement)
-})
+watchEffect(
+  (onCleanup) => {
+    if (!node.hidden) {
+      props.resizeObserver.observe(nodeElement.value as HTMLDivElement)
 
-onBeforeUnmount(() => {
-  props.resizeObserver.unobserve(nodeElement.value as HTMLDivElement)
-})
+      onCleanup(() => props.resizeObserver.unobserve(nodeElement.value as HTMLDivElement))
+    }
+  },
+  { flush: 'post' },
+)
 
 watch(
   [() => node.type, () => node.sourcePosition, () => node.targetPosition],

packages/core/src/container/NodeRenderer/NodeRenderer.vue

@@ -29,7 +29,7 @@ until(() => nodes.length > 0 && getNodesInitialized.length === nodes.length)
 
 onMounted(() => {
   resizeObserver = new ResizeObserver((entries) => {
-    const updates = entries.map((entry: ResizeObserverEntry) => {
+    const updates = entries.map((entry) => {
       const id = entry.target.getAttribute('data-id') as string
 
       return {