docs: make accordion mode easier to understand

[afc163]

中文版模板 / Chinese template

🤔 This is a ...

• New feature
• Bug fix
• Site / documentation update
• Demo update
• Component style update
• TypeScript definition update
• Bundle size optimization
• Performance optimization
• Enhancement feature
• Internationalization
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Workflow
• Other (about what?)

🔗 Related issue link

💡 Background and solution

https://x.com/yisibl/status/1790998298985484364

📝 Changelog

Language	Changelog
🇺🇸 English	Improve accordion mode documentation.
🇨🇳 Chinese	优化文档。

☑️ Self-Check before Merge

⚠️ Please check all items below before requesting a reviewing. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

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[github-actions]

[github-actions]

👁 Visual Regression Report for PR #48972 Passed ✅

🎯 Target branch: master (b62b819)
📖 View Full Report ↗︎

🎊 Congrats! No visual-regression diff found.

[github-actions]

size-limit report 📦

Path	Size
./dist/antd.min.js	337.87 KB
./dist/antd-with-locales.min.js	385.52 KB

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (b62b819) to head (ef0caae).

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #48972   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          745       745           
  Lines        12977     12977           
  Branches      3403      3403           
=========================================
  Hits         12977     12977           

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