fix: styles could be optional for cardProps in config provider

[Yawenina]

[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
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🔗 Related issue link

💡 Background and solution

styles defined in card component is optional, but in config provider its mandatory.

Typescript will throw error if we don't pass styles.

Solution
make styles optional in config provider:

📝 Changelog

Language	Changelog
🇺🇸 English	make styles optional in config provider:
🇨🇳 Chinese	ConfigProvider 中定义 cardProps 中的 styles 可选

☑️ 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

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👁 Visual Regression Report for PR #47601 Passed ✅

🎯 Target branch: master (9c72ee3)
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All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (9c72ee3) to head (208b5fb).

Additional details and impacted files

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  Files          734       734           
  Lines        12593     12593           
  Branches      3298      3298           
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  Hits         12593     12593           

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