fix: Descriptions组件不设置label的显示问题

[xuqiang1227]

🤔 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?)

👻 What's the background?

close #17290

💡 Solution

📝 Changelog

Language	Changelog
🇺🇸 English
🇨🇳 Chinese

☑️ Self Check before Merge

• 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

[tests-checker]

Could you please add tests to make sure this change works as expected?

[netlify]

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[codecov]

Codecov Report

Merging #17337 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #17337   +/-   ##
=======================================
  Coverage   95.95%   95.95%           
=======================================
  Files         263      263           
  Lines        7351     7351           
  Branches     2015     2042   +27     
=======================================
  Hits         7054     7054           
  Misses        295      295           
  Partials        2        2

Impacted Files	Coverage Δ
components/descriptions/index.tsx	98.66% <ø> (ø)	⬆️

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #17337 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #17337   +/-   ##
=======================================
  Coverage   95.95%   95.95%           
=======================================
  Files         263      263           
  Lines        7351     7351           
  Branches     2015     2042   +27     
=======================================
  Hits         7054     7054           
  Misses        295      295           
  Partials        2        2

Impacted Files	Coverage Δ
components/descriptions/index.tsx	98.66% <ø> (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 4463d24...6575501. Read the comment docs.