docs: note changeFigure figure side priority

[fltLi]

注意到实际使用中同时开启 -left 和 -right (与顺序无关), 模型始终靠右.

[gemini-code-assist]

Code Review

This pull request updates the documentation for the changeFigure command by adding a warning that the right parameter takes precedence over the left parameter. The review feedback suggests clarifying that this priority is independent of the order in which the parameters are written and recommends merging the warning blocks to improve the document's flow and readability.

[MakinoharaShoko]

感谢贡献。不过这属于非推荐用法下的参数冲突结果，不适合写进正式文档中。