feat: Support source in the onSearch handler of Input.Search Component when the value had changed

[kiner-tang]

[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
• Workflow
• Other (about what?)

🔗 Related issue link

• 📝 [RFC] Support source in the onSearch handler of Input Component when the value had changed #44454
• close Input.Search allowClear，点击清除按钮，会触发onSearch事件 #44371

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Support source in the onSearch handler of Input.Search Component when the value had changed
🇨🇳 Chinese	Input.Search 组件支持在 onSearch 方法中接受 source 参数

☑️ 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

---

🚀 Summary

🤖 Generated by Copilot at 9c5441a

This pull request enhances the Search component and its demo and tests by introducing a new source prop that indicates the trigger of the search action. This enables more flexibility and customization of the search behavior and user experience.

🔍 Walkthrough

🤖 Generated by Copilot at 9c5441a

• Add a new source prop to the Search component to indicate the source of the search action (link)
• Pass the source prop as 'clear' or 'input' to the customOnSearch function in Search.tsx depending on the user interaction (link, link)
• Import the SearchProps type and use it to define the onSearch function in the demo file search-input.tsx (link, link)
• Update the test cases in Search.test.tsx to expect the source prop as 'clear' or 'input' in different scenarios (link, link, link, link, link, link, link, link)

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size-limit report 📦

Path	Size
./dist/antd.min.js	390.74 KB (+17 B 🔺)
./dist/antd-with-locales.min.js	449.67 KB (+20 B 🔺)

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (e7c7601) 100.00% compared to head (ad62e71) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##           feature    #44457   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          668       668           
  Lines        11325     11325           
  Branches      3062      3062           
=========================================
  Hits         11325     11325           

Files Changed	Coverage Δ
components/input/Search.tsx	100.00% <100.00%> (ø)

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