style: fix select content style

[xrkffgg]

🤔 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

close #21934

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	fix select content style
🇨🇳 Chinese	修复 select content 样式

☑️ 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]

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[codecov]

Codecov Report

Merging #21940 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #21940   +/-   ##
=======================================
  Coverage   97.96%   97.96%           
=======================================
  Files         305      305           
  Lines        7017     7017           
  Branches     1888     1934   +46     
=======================================
  Hits         6874     6874           
  Misses        143      143           

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