feat: add -movable classname

[ug-hero]

ant-design/ant-design#57249

新增一个-movable 类名，在antd侧，单独写-movable的样式cursor: 'grab'

Summary by CodeRabbit

发布说明

• 新功能

  • 预览组件新增“可移动”样式支持：当启用时，会在预览根元素应用对应样式以实现可移动相关视觉行为。

• 测试

  • 增强了预览相关测试，新增用例验证根据可移动属性动态添加或移除对应样式类，确保行为一致。

[vercel]

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[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

此拉取请求引入了一个新的功能，允许 Preview 组件根据 movable 属性动态应用一个 CSS 类名。这使得开发者能够更灵活地控制可移动元素的样式，例如设置拖拽光标，从而提升用户体验和界面的可定制性。

Highlights

• 新增可移动类名: 在 Preview 组件中，根据 movable 属性的值，动态添加或移除一个名为 ${prefixCls}-movable 的 CSS 类名，以便在 Ant Design 侧可以单独为可移动元素设置 cursor: 'grab' 等样式。
• 增加测试用例: 为新添加的 movable 类名功能增加了测试用例，确保其根据 movable prop 正确渲染和移除。

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Changelog

• src/Preview/index.tsx
  • 根据 movable 属性动态添加 ${prefixCls}-movable 类名。
• tests/preview.test.tsx
  • 调整了 React 和 Dialog 的导入顺序。
  • 新增了一个测试用例，验证 movable 属性是否正确控制 ${prefixCls}-movable 类名的渲染。

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: e7c00c46-9a24-4fc3-84ea-d68e1a3f6377

📥 Commits

Reviewing files that changed from the base of the PR and between 42df24b and 427d62f.

📒 Files selected for processing (1)

• tests/preview.test.tsx

🚧 Files skipped from review as they are similar to previous changes (1)

• tests/preview.test.tsx

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Walkthrough

在 Preview 组件根元素上根据 movable 属性条件性添加 ${prefixCls}-movable CSS 类，并为此添加了对应的单元测试以验证类的添加与移除。

Changes

Cohort / File(s)	Summary
Preview 组件 src/Preview/index.tsx	在 Preview 根元素中添加条件性 CSS 类 ${prefixCls}-movable，当 movable 为 true 时应用该类。
Preview 测试 tests/preview.test.tsx	调整导入（添加 Dialog 的导入）并新增测试用例：验证在 movable 为 true 时根元素含 rc-image-preview-movable 类，重渲染为 movable: false 时类被移除。

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 分钟

Possibly related PRs

• feat: support classnames and styles #378：与本 PR 都修改了 Preview 组件的类名处理（本 PR 添加 ${prefixCls}-movable 类）。

Suggested reviewers

• zombieJ
• thinkasany

兔子诗

🐰 轻轻一跳加个类，预览根上风舞开，
属性为真便可见，测试来回又确认，
小改动，大欢喜，代码整洁心更安。

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题清晰简洁，准确概括了PR的主要变更：添加-movable类名功能，与代码变更内容完全相符。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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[gemini-code-assist]

Code Review

本次 PR 为 Preview 组件添加了 -movable 类名，用于支持 movable 状态下的样式自定义。相关实现逻辑清晰，并且补充了完整的单元测试来覆盖默认开启和手动关闭 movable 时的场景。整体来看没有问题。

[ug-hero]

看了一下测试用例的报错应该是master上的代码，我试着一些方法改一下，没搞成功