docs: update examples

examples/vite/src/RGBFlow/RGBFlow.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import { templateRef } from '@vueuse/core'
-import type { Elements, FlowInstance } from '@braks/vue-flow'
+import type { Elements, VueFlowStore } from '@braks/vue-flow'
 import { VueFlow } from '@braks/vue-flow'
 import RGBNode from './RGBNode.vue'
 import RGBOutputNode from './RGBOutputNode.vue'
@@ -22,7 +22,7 @@ const elements = ref<Elements>([
 
 const el = templateRef<HTMLDivElement>('page', null)
 
-const onLoad = (flowInstance: FlowInstance) => {
+const onLoad = (flowInstance: VueFlowStore) => {
   flowInstance.fitView({ padding: 1 })
 }
 const color = ref<Colors>({