Method delete

packages/shell/src/model/node-children.ts:71–73

* 删除指定节点 * delete the node * @param node

(node: IPublicModelNode)

   * @param node
   */
  delete(node: IPublicModelNode): boolean {
    return this[nodeChildrenSymbol].delete((node as any)?.[nodeSymbol]);
  }

  /**
   * 插入一个节点