dynamic switching between light theme and dark theme

[zhibuba]

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

The library provide multiple official theme css files, but no convinent way to switch between them during runtime. Switching between light and dark themes by user is a common need.

What does the proposed API look like?

const theme = useTheme()
theme.value = 'dark'

[github-actions]

Hello @zhibuba, we use GitHub issues to trace bugs or discuss plans of Ant Design Vue. So, please don't ask usage questions here. You can try to open a new discussion in antdv discussions, select Q&A to ask questions, also can ask questions on Stack Overflow or Segment Fault.

你好 @zhibuba，Ant Design Vue Issue 板块是用于 bug 反馈与需求讨论的地方。请勿询问如何使用的问题，你可以试着在 antdv discussions 新开一个 discussion，选择 Q&A 类别进行提问，也可以在 Stack Overflow 或者 Segment Fault 中提问。

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.