fix: input onSearch trigger wrongly (#34844)

[qyzzzz]

[中文版模板 / Chinese template]

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🔗 Related issue link

#34844

💡 Background and solution

问题：Input.Search组件，在使用中文输入法输入后回车，会触发onSearch事件，这跟旧版本的表现不一致。同时，onSearch事件中使用的值跟input组件内的值也不一致。
解决：监听compositionStart和compositionEnd事件，在中文输入法输入状态下，回车不触发onSearch事件。

📝 Changelog

Language	Changelog
🇺🇸 English	fix Input.Seach component wrongly trigger onSearch method when press enter using chinese inputting method
🇨🇳 Chinese	修复Input.Search组件在中文输入法下输入enter键触发了onSearch

☑️ 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

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[codecov]

Codecov Report

Merging #35164 (6b0e752) into master (cbd4f1b) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 6b0e752 differs from pull request most recent head 181c1a9. Consider uploading reports for the commit 181c1a9 to get more accurate results

@@            Coverage Diff            @@
##            master    #35164   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          425       425           
  Lines         7935      7946   +11     
  Branches      2300      2301    +1     
=========================================
+ Hits          7935      7946   +11     

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

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[qyzzzz]

原因是：input组件抽离成rc-input后，判断pressEnter的条件由e.keyCode === 13（keyCode已废弃）换成了e.key === 'Enter'。但在中文输入法下输入enter，不同浏览器的e.key不一定相同。例如，mac chrome 100.0.4896.127，safari 14.0.3 (16610.4.3.1.7) 的key 为 "Enter"，但 win chrome 100.0.4896.127的key为"Process"。这种情况下，前者就会被触发onSearch回调。

[afc163]

但 win chrome 100.0.4896.127的key为"Process"

是不是应该对 win chrome 做 e.key 的兼容更合适？

[qyzzzz]

但 win chrome 100.0.4896.127的key为"Process"

是不是应该对 win chrome 做 e.key 的兼容更合适？

先说预期表现～依照 antd 历史版本（抽离 rc-input 之前）的预期表现，即中文输入法下 enter 不会触发 onSearch。
目前 win chrome 中文输入法下 key === 'Process' 不会触发 onSearch，符合预期。
在 mac chrome 和 safari 下则 key === 'Enter'，会触发 onSearch。
因此需要兼容后者。
针对后者，无论是否中文输入法下回车，均满足 key === 'Enter'。因此无法单从 key 来判断，才使用了 composition 的方案。

[MadCcc]

针对后者，无论是否中文输入法下回车，均满足 key === 'Enter'。因此无法单从 key 来判断，才使用了 composition 的方案。

感觉 composition 的方案会更持久一点，对 key 作兼容有点 hack 的味道