[Bug] ReactVTable Popover 定位到表格外渲染时，展示不全问题

[l28S]

Version

1.16.0

Link to Minimal Reproduction

https://visactor.io/vtable/guide/custom_define/react-custom-component

Steps to Reproduce

Popover position top

Current Behavior

Expected Behavior

正常渲染

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response

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