fix: Switch trigger motion

[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
• Perfermance optimization
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

resolve #19915
resolve #24087

💡 Background and solution

把 Switch 的 handle 做成一个元素，让 loadingIcon 放里面免得还要额外处理对齐问题。现在实际元素总是和容器尺寸对齐，点击宽度变化通过内部渲染元素改变。

Preview

https://preview-24254-ant-design.surge.sh/components/switch-cn/

📝 Changelog

Language	Changelog
🇺🇸 English	Fix Switch autoFocus trigger when disabled removed. Adjust style to avoid switch shaking. Remove blur logic when onMouseUp to improve acessibility.
🇨🇳 Chinese	修复 Switch autoFocus 在 disabled 移除后会触发的问题。调整样式以避免切换时额外的抖动。移除鼠标点击失焦逻辑以提升无障碍体验。

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• 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

[ant-design-bot]

[codecov]

Codecov Report

Merging #24254 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master   #24254   +/-   ##
=======================================
  Coverage   98.81%   98.81%           
=======================================
  Files         363      363           
  Lines        7280     7281    +1     
  Branches     2006     2015    +9     
=======================================
+ Hits         7194     7195    +1     
  Misses         86       86           

Impacted Files	Coverage Δ
components/switch/index.tsx	100.00% <100.00%> (ø)

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