style: 💄 change card actions color to body color

[07akioni]

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

🔗 Related issue link

💡 Background and solution

New design of card.

📝 Changelog

我不知道这个用不用 change log，不用的话当我没写。

Language	Changelog
🇺🇸 English	Card action pane color is unified with body color.
🇨🇳 Chinese	Card 操作面板颜色与主体颜色统一。

☑️ 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]

[ant-design-bot]

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[afc163]

Update Card style. Make action pane's color to the same as body color.

写成一句话。