docs: fix additional-components imports

docs/components/examples/multi/Flow.vue

@@ -1,5 +1,6 @@
 <script setup>
-import { Background, VueFlow, isNode } from '@vue-flow/core'
+import { VueFlow, isNode } from '@vue-flow/core'
+import { Background } from '@vue-flow/additional-components'
 import { ref } from 'vue'
 
 const elements = ref([

packages/pathfinding-edge/example/App.vue

@@ -1,6 +1,7 @@
 <script lang="ts" setup>
 import type { Connection, Edge, Elements } from '@vue-flow/core'
-import { Background, VueFlow, addEdge } from '@vue-flow/core'
+import { VueFlow, addEdge } from '@vue-flow/core'
+import { Background } from '@vue-flow/additional-components'
 import { ref } from 'vue'
 import initialElements from './elements'
 import { PathFindingEdge, PerfectArrow } from '~/index'

packages/resize-rotate-node/example/App.vue

@@ -1,6 +1,7 @@
 <script lang="ts" setup>
 import type { Elements, FlowEvents } from '@vue-flow/core'
-import { Background, Controls, MiniMap, VueFlow, addEdge } from '@vue-flow/core'
+import { VueFlow, addEdge } from '@vue-flow/core'
+import { Background, Controls, MiniMap } from '@vue-flow/additional-components'
 import { ref } from 'vue'
 import { ResizeRotateNode } from '../src'
 import initialElements from './elements'