autoFocus in Textarea in modal such as [Modal.confirm] doesn't work

[LizaMaharjan]

Reproduction link

• I would appreciate it if you could demonstrate possible solutions given the CodeSandbox

Steps to reproduce

• Click on open
• The input/ text area in the modal doesn't get focused even after using getContainer prop

What is expected?

• The input or textarea that is inside the Modal.confirm modal should be focused on clicking 'Open'

What is actually happening?

• The input/ text area in the modal doesn't get focused even after using getContainer prop

Environment	Info
antd	5.9.4
React	18.2.0
System	Mac
Browser	Chrome

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• This case is only for 'Modal.confirm' which im using it to show different cases of info, success, warning conditions.

[github-actions]

Hello @LizaMaharjan2001. Please provide a online reproduction by forking codesandbox of antd@5.x or antd@4.x, or provide a minimal GitHub repository. Issues labeled by Need Reproduce will be closed if no activities in 3 days.

你好 @LizaMaharjan2001, 我们需要你提供一个在线的重现实例以便于我们帮你排查问题。你可以通过点击这里创建一个 antd@5.x 或 antd@4.x 的 codesandbox，或者提供一个最小化的 GitHub 仓库。3 天内未跟进此 issue 将会被自动关闭。

[LizaMaharjan]

@MadCcc @zombieJ I've forked the codeSandbox, not sure why it wasn't recorded, please help!

[MadCcc]

Modal.confirm will focus on OK button automaticly, that's why textarea didn't get focused.
Use autoFocusButton: null to avoid auto focusing.

[LizaMaharjan]

@MadCcc it still didn't worked for my case.
I've demonstrated my issue into the codesandbox here: https://codesandbox.io/s/static-method-antd-5-10-3-forked-5kr3l2?file=/demo.tsx
Please have a look on what i missed or did wrong.

[afc163]

See #41239