fix: disabled btn with link should not be focused

[MadCcc]

[中文版模板 / Chinese template]

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• Bug fix
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🔗 Related issue link

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix Button with href and disabled that could be focused.
🇨🇳 Chinese	修复 Button 带有链接且禁用时可以被聚焦到的问题。

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---

🚀 Summary

🤖[deprecated] Generated by Copilot at 6fe5aa9

Added tabIndex attribute to button.tsx to control keyboard focus. Prevented disabled buttons from being focusable for accessibility.

🔍 Walkthrough

🤖[deprecated] Generated by Copilot at 6fe5aa9

• Add tabIndex attribute to button element to control keyboard focus order and prevent disabled buttons from receiving focus (link)

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size-limit report 📦

Path	Size
./dist/antd.min.js	321.26 KB (-236 B 🔽)
./dist/antd-with-locales.min.js	367.07 KB (-87 B 🔽)

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Build	Status	Details	Updated (UTC)
default (Inspect)	✅ No change detected	-	Nov 16, 2023, 3:04 AM

[MadCcc]

这 bundlesize 小在哪了

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (ab4863c) 100.00% compared to head (a6c55c9) 100.00%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #45910   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          700       700           
  Lines        11831     11832    +1     
  Branches      3154      3155    +1     
=========================================
+ Hits         11831     11832    +1     

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