Add items parameter to the open-menu-doctree event

[TCOTC]

fix #15615

还需要修改 petal：

https://github.com/siyuan-note/petal/blob/3076bfbbff6110c098472046350cba4cb9f178e0/siyuan.d.ts#L167-L171

改成：

"open-menu-doctree": {
    menu: subMenu,
    elements: Element[],
    type: "doc" | "docs" | "notebook",
    items: { id: string, path: string }[],
};

[TCOTC]

• 需要增加菜单：Improve #commonMenu menu #16147 (comment)