fix: Upload.Dragger not align center

[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

close #46795

💡 Background and solution

#46432 里改成 display: flex; 是为了让 focus 的 outline 样式有圆角，这个后面再想办法。

📝 Changelog

Language	Changelog
🇺🇸 English	Fix Upload.Dragger not align center and focus ring style.
🇨🇳 Chinese	修复 Upload.Dragger 内容不居中和多余的 focus 样式的问题。

☑️ 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]

Visual Regression Report for PR #46810 Failed ❌

Target branch: master (9ece76b)
View Full Report

---

image name	expected	actual	diff
form-validate-other.png
form-validate-other.css-var.png
upload-drag.png
upload-drag.css-var.png

Check Full Report for details

[github-actions]

[github-actions]

size-limit report 📦

Path	Size
./dist/antd.min.js	328.97 KB (+3 B 🔺)
./dist/antd-with-locales.min.js	375.04 KB (+12 B 🔺)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9ece76b) 100.00% compared to head (d78cdd9) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #46810   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          722       722           
  Lines        12443     12443           
  Branches      3265      3265           
=========================================
  Hits         12443     12443           

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[github-actions]

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[yoyo837]

我放个与上上次的差异图