feat: sender add suffix

[dexter-cuijian]

中文版模板 / Chinese template

🤔 This is a ...

• 🆕 New feature
• 🐞 Bug fix
• 📝 Site / documentation improvement
• 📽️ Demo improvement
• 💄 Component style improvement
• 🤖 TypeScript definition improvement
• 📦 Bundle size optimization
• ⚡️ Performance optimization
• ⭐️ Feature enhancement
• 🌐 Internationalization
• 🛠 Refactoring
• 🎨 Code style optimization
• ✅ Test Case
• 🔀 Branch merge
• ⏩ Workflow
• ⌨️ Accessibility improvement
• ❓ Other (about what?)

🔗 Related Issues

• Describe the source of related requirements, such as links to relevant issue discussions.
• For example: close #xxxx, fix #xxxx

Add a suffix configuration to the sender component

💡 Background and Solution

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📝 Change Log

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Language	Changelog
🇺🇸 English
🇨🇳 Chinese

Summary by CodeRabbit

• 新功能
  • 支持在发送器组件中添加可自定义样式和类名的后缀元素（suffix），可与前缀元素类似灵活展示。
  • 发送器组件示例中新增后缀按钮及图标展示，支持多语言标签显示。
  • 发送器组件文档更新，新增后缀属性说明。

[coderabbitai]

📝 Walkthrough

Walkthrough

本次更改为 Sender 组件引入了对 suffix（后缀）元素的支持。更新包括在组件属性中添加 suffix 相关的 React 节点、样式与类名，并在组件内部实现了 suffix 的条件渲染。同时为 suffix 添加了相应的 CSS 样式规则，并在示例和中文文档中补充了 suffix 的演示与说明。

Changes

文件/分组	变更摘要
components/sender/index.tsx	新增 suffix 属性及其样式、类名，支持后缀节点的渲染与自定义。
components/sender/style/index.ts	增加 suffix 元素的 CSS 样式规则（flex: none）。
components/sender/demo/_semantic.tsx	在示例中添加 suffix 插槽支持，包含图标按钮及中英文语义标签。
components/sender/index.zh-CN.md	文档中新增 suffix 属性说明，描述后缀内容的用途。

Possibly related PRs

• ✨ feat: Sender / ChatInput components #46: 该 PR 为 Sender 组件的初始实现及样式基础，本次更改在其基础上添加了 suffix 支持。

Suggested reviewers

• afc163
• kimteayon

Poem

小兔挥笔写新篇，
Sender 组件添后缘。
前缀后缀齐上阵，
样式灵动更随心。
代码世界添新景，
兔子欢跳乐无边！ 🐇✨

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 74f8785 and ad5c19e.

📒 Files selected for processing (2)

• components/sender/demo/_semantic.tsx (3 hunks)
• components/sender/index.zh-CN.md (1 hunks)

✅ Files skipped from review due to trivial changes (2)

• components/sender/demo/_semantic.tsx
• components/sender/index.zh-CN.md

✨ Finishing Touches

• 📝 Generate Docstrings

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[github-actions]

[codecov]

Bundle Report

Bundle size has no change ✅

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 92.48%. Comparing base (28f8f61) to head (bf548b6).

Files with missing lines	Patch %	Lines
components/sender/index.tsx	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #896      +/-   ##
==========================================
- Coverage   92.53%   92.48%   -0.06%     
==========================================
  Files          69       69              
  Lines        1554     1556       +2     
  Branches      401      403       +2     
==========================================
+ Hits         1438     1439       +1     
- Misses        116      117       +1     

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