* feat(components): [button-group]:add vertical direction for button group
* feat(components): [button-group]: add direction prop (update)
* feat(components): [button-group]: fix docs
* feat(components): [button-group]: update version
* Update docs/en-US/component/button.md
Co-authored-by: btea <2356281422@qq.com>
* Update docs/en-US/component/button.md
* chore: format
* docs: improve sentence
* docs: improve display example
* refactor: enhance prop type
- fit with segmented direction prop
- enhance type according with
https://github.com/element-plus/element-plus/pull/22757
---------
Co-authored-by: btea <2356281422@qq.com>
Co-authored-by: Dsaquel <291874700n@gmail.com>