style: adjust div width for improved layout in Tree component

Author: liuruibin

ui/src/components/dynamics-form/items/tree/Tree.vue

@@ -1,5 +1,5 @@
 <template>
-  <div>
+  <div style="width: 100%">
     <div class="update-info flex p-8-12 border-r-6 mb-16">
       <div class="mt-4">
         <AppIcon iconName="app-warning-colorful" style="font-size: 16px"></AppIcon>