fix: Menu overflow with horizontal should not affect by float element

[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
• Performance optimization
• Enhancement feature
• Internationalization
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• Test Case
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🔗 Related issue link

resolve #30819

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix Menu auto overflow with horizontal mod breaks by float element.
🇨🇳 Chinese	修复 Menu horizontal 模式下的自动省略布局会被 float 破坏的问题。

☑️ 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

[github-actions]

[github-actions]

Size Change: +8 B (0%)

Total Size: 830 kB

Filename	Size	Change
./dist/antd.compact.min.css	63.9 kB	+4 B (0%)
./dist/antd.dark.min.css	65.2 kB	+2 B (0%)
./dist/antd.min.css	64.1 kB	+2 B (0%)

ℹ️ View Unchanged

Filename	Size	Change
./dist/antd-with-locales.min.js	340 kB	0 B
./dist/antd.min.js	297 kB	0 B

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