fix: useModal default okText

[BoyYangzai]

[中文版模板 / Chinese template]

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🔗 Related issue link

• fix zhCN模式下，useApp 导出的 modal.confirm 默认的okText属性为"知道了"，而库导出的 Modal.confirm 默认的okText 属性值为"确定" #39861

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix useModal default okText
🇨🇳 Chinese	修复了useModal默认确认按钮文本逻辑

☑️ 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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[github-actions]

[codecov]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage 👍

Coverage data is based on head (be6f99d) compared to base (d55d39b).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff            @@
##            master    #39884   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          559       559           
  Lines         9550      9550           
  Branches      2710      2710           
=========================================
  Hits          9550      9550           

Impacted Files	Coverage Δ
components/modal/useModal/HookModal.tsx	100.00% <100.00%> (ø)

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