fix: Space.Compact when wrapping a single child component

[foryuki]

[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
• Other (about what?)

🔗 Related issue link

#38590

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix Space.Compact when wrapping a single child component.
🇨🇳 Chinese	Space.Compact 包裹单个子组件时，展示该子组件本身的样式，不进行紧凑模式的样式定制。

☑️ 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

[github-actions]

[zombieJ]

Test failed. Please check.

[codecov]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage 👍

Coverage data is based on head (f52b84a) compared to base (5d9cb2e).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #38896   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          544       544           
  Lines         9358      9358           
  Branches      2652      2652           
=========================================
  Hits          9358      9358           

Impacted Files	Coverage Δ
components/style/compact-item-vertical.tsx	100.00% <ø> (ø)
components/style/compact-item.tsx	100.00% <ø> (ø)

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