docs: update examples

docs/components/examples/nested/App.vue

@@ -1,11 +1,10 @@
 <script setup>
 import { Background, Controls, MiniMap } from '@vue-flow/additional-components'
-import { ConnectionMode, VueFlow, useVueFlow } from '@vue-flow/core'
+import { VueFlow, useVueFlow } from '@vue-flow/core'
 import { onMounted } from 'vue'
 
 const { onConnect, nodes, edges, addEdges, addNodes } = useVueFlow({
   fitViewOnInit: true,
-  connectionMode: ConnectionMode.Loose,
   // set this to true so edges get elevated when selected, defaults to false
   elevateEdgesOnSelect: true,
   nodes: [
@@ -88,7 +87,9 @@ onMounted(() => {
 <template>
   <VueFlow>
     <MiniMap />
+
     <Controls />
+
     <Background />
   </VueFlow>
 </template>