feat: Support label & content style of Desc

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

🔗 Related issue link

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Descriptions.Item support labelStyle & contentStyle props.
🇨🇳 Chinese	Descriptions.Item 支持 labelStyle 和 contentStyle 属性。

☑️ 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

---

View rendered components/descriptions/demo/style.md
View rendered components/descriptions/index.en-US.md
View rendered components/descriptions/index.zh-CN.md

[ant-design-bot]

[github-actions]

Size Change: +84 B (0%)

Total Size: 789 kB

Filename	Size	Change
./dist/antd-with-locales.min.js	313 kB	+41 B (0%)
./dist/antd.min.js	276 kB	+43 B (0%)

ℹ️ View Unchanged

Filename	Size	Change
./dist/antd.compact.min.css	66.2 kB	0 B
./dist/antd.dark.min.css	67.5 kB	0 B
./dist/antd.min.css	66.2 kB	0 B

_{compressed-size-action}

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 430dfb3:

Sandbox	Source
antd reproduction template	Configuration

[codecov]

Codecov Report

Merging #27897 (430dfb3) into feature (c464f61) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##           feature    #27897   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          392       392           
  Lines         7382      7383    +1     
  Branches      2093      2094    +1     
=========================================
+ Hits          7382      7383    +1     

Impacted Files	Coverage Δ
components/descriptions/Item.tsx	100.00% <ø> (ø)
components/descriptions/Row.tsx	100.00% <ø> (ø)
components/descriptions/Cell.tsx	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c464f61...430dfb3. Read the comment docs.