fix: 修复维值包含 '\t' 制表符时导致复制到 Excel 中数据错列的问题

[lijinke666]

👀 PR includes

🐛 Bugfix

• Solve the issue and close #0

📝 Description

复制/导出时会在文本的两侧中增加制表符，用于在 Excel 中展示, 兼容极端情况，防止维值中本身就存在制表符的情况，如：“成都市\t” => "成都市\t\t" 导致错列

🖼️ Screenshot

Before	After

🔗 Related issue link

🔍 Self-Check before the merge

• Add or update relevant docs.
• Add or update relevant demos.
• Add or update test case.
• Add or update relevant TypeScript definitions.

[github-actions]

你好 @lijinke666，非常感谢你的贡献.
为了让代码更健壮, 请根据 贡献指南 补充相应单元测试 (文档改动或其他特殊场景除外), 如果有 API 改动, 请修改 相应的文档.
同时请检查 lint 和 test 相关 CI 是否通过, 如果失败, 请点击 [Details] 按钮查看, 并根据日志修复.

Hello, @lijinke666, Thanks for your contribution. In order to make the code more robust, please add the corresponding unit tests, and update the docs if there are API changes.
At the same time, please check whether the CI related to lint and test passes. If the CI fails, please click [Details] button to check and repair according to the log.

[petercat-assistant]

Walkthrough

此PR修复了在复制或导出数据到Excel时，维值中包含制表符（\t）导致数据错列的问题。通过在文本两侧增加制表符，确保在Excel中正确展示，即使维值中本身存在制表符也能兼容。

Changes

文件	概要
packages/s2-core/__tests__/unit/utils/export/export-pivot-spec.ts	添加了测试用例以验证在不同格式选项下，维值中包含制表符的处理。
packages/s2-core/__tests__/unit/utils/export/method-spec.ts	添加了针对trimTabSeparator、convertString、keyEqualTo方法的单元测试。
packages/s2-core/src/extends/pivot-chart/cell/pivot-chart-data-cell.ts	修正了类型断言以确保兼容性。
packages/s2-core/src/utils/export/copy/common.ts	在获取节点格式化标签时，移除了值中的制表符。
packages/s2-core/src/utils/export/method.ts	添加了trimTabSeparator方法，用于移除文本中的制表符。

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 84.61538% with 2 lines in your changes missing coverage. Please review.

Project coverage is 79.80%. Comparing base (ecdc9c8) to head (c8f7b82).
Report is 606 commits behind head on next.

Files with missing lines	Patch %	Lines
packages/s2-core/src/utils/export/method.ts	84.61%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #3085      +/-   ##
==========================================
+ Coverage   75.77%   79.80%   +4.03%     
==========================================
  Files         257      211      -46     
  Lines       11994    11628     -366     
  Branches     2464     2618     +154     
==========================================
+ Hits         9088     9280     +192     
+ Misses       1398      781     -617     
- Partials     1508     1567      +59     

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[github-actions]

Size Change: +119 B (+0.02%)

Total Size: 619 kB

Filename	Size	Change
./packages/s2-core/dist/s2-extends.min.js	154 kB	+88 B (+0.06%)
./packages/s2-core/dist/s2.min.js	257 kB	+31 B (+0.01%)

ℹ️ View Unchanged

Filename	Size
./packages/s2-core/dist/s2.min.css	581 B
./packages/s2-react-components/dist/s2-react-components.min.css	2.55 kB
./packages/s2-react-components/dist/s2-react-components.min.js	124 kB
./packages/s2-react/dist/s2-react.min.css	1.74 kB
./packages/s2-react/dist/s2-react.min.js	38.3 kB
./packages/s2-vue/dist/s2-vue.min.css	2.05 kB
./packages/s2-vue/dist/s2-vue.min.js	38.3 kB

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[lijinke666]

🎉 This PR is included in version @antv/s2-v2.1.10 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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