chore(core): cleanup

packages/core/src/components/Handle/Handle.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import { toRef, until } from '@vueuse/core'
-import { computed, onBeforeUnmount, ref } from 'vue'
+import { computed, onUnmounted, ref } from 'vue'
 import type { HandleProps } from '../../types/handle'
 import { Position } from '../../types'
 import { useHandle, useNode, useVueFlow } from '../../composables'
@@ -131,7 +131,7 @@ until(() => node.initialized)
     node.handleBounds[type.value] = [...(node.handleBounds[type.value] ?? []), nextBounds]
   })
 
-onBeforeUnmount(() => {
+onUnmounted(() => {
   // clean up node internals
   const handleBounds = node.handleBounds[type.value]
   if (handleBounds) {