fix: Vertical tabs active width fix

[sosohime]

🤔 This is a ...

• New feature
• Bug fix
• Site / document update
• Component style update
• TypeScript definition update
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

#18652

💡 Background and solution

Background

tab active之后font-weight变成500，字体宽度会变宽0.17px (macOS chrome 76.0.3809.132)，导致观察到tab “跳一下”。

solution

rc-tabs 为 tab 为 string 增加 attribute，antd 使用伪元素为其预留位置

📝 Changelog

Language	Changelog
🇺🇸 English
🇨🇳 Chinese

☑️ Self Check before Merge

• 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

[tests-checker]

Could you please add tests to make sure this change works as expected?

[netlify]

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Built with commit 893c0a0

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[codecov]

Codecov Report

Merging #18940 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #18940      +/-   ##
==========================================
- Coverage   96.93%   96.92%   -0.01%     
==========================================
  Files         281      281              
  Lines        7557     7554       -3     
  Branches     2068     2105      +37     
==========================================
- Hits         7325     7322       -3     
  Misses        230      230              
  Partials        2        2

Impacted Files	Coverage Δ
components/tree-select/index.tsx	95.55% <0%> (-0.28%)	⬇️
components/breadcrumb/Breadcrumb.tsx	96.96% <0%> (ø)	⬆️
components/tree/Tree.tsx	96.87% <0%> (ø)	⬆️

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[sosohime]

How about this solution. @dengfuping

[zombieJ]

ref react-component/tabs#221

[sosohime]

还有一个解决方案，取消active的加粗

[zombieJ]

Update：react-component/tabs#221 (comment)

[afc163]

Fixed in #24552