feat: Grid support flex responsive config

[zombieJ]

[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

resolve #46055

💡 Background and solution

#41962 Do nothing but only a useless className. Realize it instead.

📝 Changelog

Language	Changelog
🇺🇸 English	Grid support flex responsive config.
🇨🇳 Chinese	Grid 支持为响应式布局配置 flex 属性。

☑️ 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

[stackblitz]

Run & review this pull request in StackBlitz Codeflow.

[github-actions]

Visual Regression Report for PR #47124 Passed ✅

Target branch: feature (0adf67f)

---

Congrats! No visual-regression diff found

[github-actions]

[github-actions]

size-limit report 📦

Path	Size
./dist/antd.min.js	331.37 KB (+188 B 🔺)
./dist/antd-with-locales.min.js	377.23 KB (+98 B 🔺)

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 7d6aed5:

Sandbox	Source
antd reproduction template (forked)	Configuration

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0adf67f) 100.00% compared to head (7d6aed5) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##           feature    #47124   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          732       732           
  Lines        12554     12558    +4     
  Branches      3294      3294           
=========================================
+ Hits         12554     12558    +4     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

🎉 Thank you for your contribution! If you have not yet joined our DingTalk community group, please feel free to join us (when joining, please provide the link to this PR).

🎉 感谢您的贡献！如果您还没有加入钉钉社区群，请扫描下方二维码加入我们（加群时请提供此 PR 链接）。