[Bug] 使用数据懒加载后自定义icon中使用了width这类属性后导致渲染不出来

[linrufeng]

Version

1.2.0

Link to Minimal Reproduction

https://visactor.io/vtable/demo/custom-render/custom-icon

Steps to Reproduce

使用文档中的数据懒加载 并配置自定义icon

Current Behavior

这是文档中的例子

icon: {
      type: 'image',
      src: 'avatar',
      name: 'avatar_pic',
      shape: 'circle',
      width: 30, // Optional
      height: 30,
      positionType: VTable.TYPES.IconPosition.contentLeft,
      marginRight: 20,
      marginLeft: 0,
      cursor: 'pointer'
}

Expected Behavior

希望懒加载能够正常展示

Environment

- OS:
- Browser: Chrome 
- Framework:

Any additional comments?

No response