feat(Badge): unified provision of custom prefixCls

[EmilyyyLiu]

统一添加自定义class 前缀
关联issue #6960

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[github-actions]

[gemini-code-assist]

Summary of Changes

Hello @EmilyyyLiu, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

此拉取请求旨在通过引入统一的自定义类前缀机制来标准化组件的样式管理，首先从 Badge 组件开始。这一改进使得用户能够通过 ConfigProvider 进行全局配置，或在组件级别进行局部定义，从而实现更灵活的样式和主题定制。

Highlights

• 自定义类前缀支持: 为 Badge 组件引入了 prefixCls 属性，允许开发者自定义其 CSS 类前缀，从而实现更灵活的样式控制。
• ConfigProvider 增强: 增强了 ConfigProvider，使其能够全局管理和提供 prefixCls 以及一个 getPrefixCls 函数，方便组件统一获取和应用前缀。
• Badge 组件集成: Badge 组件现在利用 useConfig 从 ConfigProvider 获取 getPrefixCls 函数，并应用统一的前缀逻辑，确保样式的一致性。
• 测试用例更新: 为 Badge 组件添加了新的测试用例，以验证通过 ConfigProvider 和组件自身属性设置自定义 prefixCls 的功能，确保其正确性。
• 文档更新: 更新了 ConfigProvider 的英文和中文文档，以包含新的 prefixCls 属性，方便用户了解和使用此功能。

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[gemini-code-assist]

Code Review

This pull request introduces a unified way to provide a custom prefixCls for components, starting with the Badge component. The implementation correctly uses React's Context API via a ConfigProvider to allow for global and per-component prefix overrides. The changes are well-structured, include appropriate tests for the new functionality, and update the documentation. I have one minor suggestion for improvement.

[gemini-code-assist]

The props object in a React functional component is guaranteed to be defined. Therefore, the optional chaining operator (?.) is not necessary here. You can safely access props.prefixCls directly for cleaner code.

Suggested change

	const prefixCls = getPrefixCls('badge', props?.prefixCls)
	const prefixCls = getPrefixCls('badge', props.prefixCls)

[pkg-pr-new]

npm i https://pkg.pr.new/ant-design/ant-design-mobile/antd-mobile@6965

commit: 00422a9

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.95%. Comparing base (bfde19d) to head (00422a9).

Additional details and impacted files

@@           Coverage Diff            @@
##           feature    #6965   +/-   ##
========================================
  Coverage    92.95%   92.95%           
========================================
  Files          337      337           
  Lines         7368     7369    +1     
  Branches      1871     1871           
========================================
+ Hits          6849     6850    +1     
  Misses         483      483           
  Partials        36       36           

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