fix: fix Descriptions size small of CP

[wanghui2021]

[中文版模板 / Chinese template]

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• Bug fix
• Site / documentation update
• Demo update
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🔗 Related issue link

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix ConfigProvider size prop not work on Descriptions.
🇨🇳 Chinese	修复 ConfigProvider size 对 Descriptions 无效的问题。

☑️ 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
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---

🚀 Summary

🤖 Generated by Copilot at 17ad002

Added support for componentSize from ConfigProvider to Descriptions component. Renamed size prop to customizeSize and updated tests accordingly.

🔍 Walkthrough

🤖 Generated by Copilot at 17ad002

• Rename size prop of Descriptions component to customizeSize and use SizeContext to get componentSize value from ConfigProvider (link, link, link, link)
• Add ConfigProvider component to test file and create a new test case to check that Descriptions component inherits size from ConfigProvider (link, link)

[github-actions]

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (1a44c46) 100.00% compared to head (17ad002) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #42244   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          618       618           
  Lines        10539     10541    +2     
  Branches      2879      2880    +1     
=========================================
+ Hits         10539     10541    +2     

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

... and 3 files with indirect coverage changes

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