Rsbuild Button component: icon position is not correct when used with an icon.

[fewbadboy]

[github-actions]

Hello @fewbadboy, your issue has been closed because it does not conform to our issue requirements. Please use the Issue Helper to create an issue, thank you!

你好 @fewbadboy，为了能够进行高效沟通，我们对 issue 有一定的格式要求，你的 issue 因为不符合要求而被自动关闭。你可以通过 issue 助手 来创建 issue 以方便我们定位错误。谢谢配合！