The content of the contextmenu will be obscured by the canvas and cannot be changed according to the size of the remaining container

[liu-code-hs]

Describe the bug / 问题描述

g6版本：5.0.26

Reproduction link / 重现链接

No response

Steps to Reproduce the Bug or Issue / 重现步骤

No response

G6 Version / G6 版本

🆕 5.x

Operating System / 操作系统

macOS

Browser / 浏览器

Chrome

Additional context / 补充说明

No response

[github-actions]

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[github-actions]

Since the issue is missing key information and has been inactive for 7 days, it has been automatically closed. If you wish to see the issue reopened, please provide the missing information. | 由于该 issue 缺少关键信息且已闲置 7 天，现已自动关闭。如需重新打开此问题，请提供所缺失的信息。。

[liu-code-hs]

这是例子：https://g6.antv.antgroup.com/examples/plugin/contextMenu#basic

把元素拖动画布右侧，然后右键，右侧画布已经没有空间，但是菜单还是展示在右侧

同样的例子在版本4的例子中就不存在这个问题：https://g6-v4.antv.vision/examples/tool/contextMenu/#contextMenu