[Bug] 数据不足一屏时，设置冻结行，表格样式错乱

[zhiaiing]

Version

1.26.5

Link to Minimal Reproduction

https://visactor.io/vtable/demo/table-type/list-table?version=1.26.5

Steps to Reproduce

data 不足一屏时， 设置frozenRowCount， bottomFrozenRowCount
const option = {
records: data.splice(0, 6),
frozenRowCount: 4,
bottomFrozenRowCount: 1,
columns,
widthMode: 'standard'
};

Current Behavior

表格中间出现空白， 滚动条位置也不对

Expected Behavior

表格渲染正常
滚动条位置正确

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response

[biubiukam]

I will investigate this issue and submit a fix based on the current develop branch.