feat(ScrollBar): 💄 use CSS variable for scrollbar color

[afc163]

Summary by CodeRabbit

• 样式

  • 移除了滚动条对暗黑模式的自适应，滚动条样式统一为固定颜色。
  • 简化并优化了滚动条样式的应用方式，减少了条件样式和事件处理。

• 测试

  • 删除了与暗黑模式相关的滚动条测试用例及测试环境配置文件。

• 杂项

  • 移除了与测试相关的配置文件，进一步精简了项目结构。

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📥 Commits

Reviewing files that changed from the base of the PR and between 3c08760 and 1611fa0.

📒 Files selected for processing (1)

• src/ScrollBar.tsx (2 hunks)

Walkthrough

本次更改移除了滚动条组件的暗黑模式检测逻辑及相关测试，简化了样式处理方式。删除了与暗黑模式相关的 Jest 配置、测试用例和测试环境初始化脚本。滚动条样式不再根据主题动态变化，统一为固定变量。

Changes

文件或路径	变更简述
jest.config.js tests/setup.js tests/dark.test.js	删除了 Jest 配置文件、测试环境初始化脚本及暗黑模式相关的测试用例
src/ScrollBar.tsx	移除了暗黑模式检测逻辑，简化样式处理，统一滚动条样式为固定变量

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant ScrollBar
  User->>ScrollBar: 渲染组件
  ScrollBar-->>User: 显示统一样式的滚动条（无暗黑模式检测）

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Possibly related PRs

• feat(ScrollBar): ✨ support dark mode #312：该 PR 引入了滚动条组件的暗黑模式支持及相关测试，本次更改正是对此的逆向移除。

Poem

🐇
代码翻新风吹来，
暗黑模式说拜拜。
滚动条色不再变，
统一变量更简单。
测试文件悄然去，
小兔挥手不留恋！

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• 📝 Generate Docstrings

🧪 Generate Unit Tests

• Create PR with Unit Tests
• Post Copyable Unit Tests in Comment
• Commit Unit Tests in branch feat/css-variable-scrollbar

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.85%. Comparing base (28a6416) to head (1611fa0).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #323      +/-   ##
==========================================
+ Coverage   97.67%   97.85%   +0.18%     
==========================================
  Files          19       19              
  Lines         818      794      -24     
  Branches      192      189       -3     
==========================================
- Hits          799      777      -22     
+ Misses         19       17       -2     

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