fix: 移除最外层的添加和删除按钮，只能子级持有

gongchunyi

昨天 3ebd5fca130c2f9a5a4afc3dce185acff752b941

 src/views/tool/build/DraggableItem.vue

@@ -25,7 +25,7 @@
  </el-col>
</template>
<script setup name="DraggableItem">
import draggable from "vuedraggable/dist/vuedraggable.common";
import draggable from "vuedraggable/dist/vuedraggable.common"
import render from '@/utils/generator/render'

const props = defineProps({