2.28.14 版本Popup 拆分至@antv/l7-component，文档应该标注上

### 问题描述

如题

### 重现链接

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### 重现步骤

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### 预期行为

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### 平台

- 操作系统: [macOS, Windows, Linux, React Native ...]
- 网页浏览器: [Google Chrome, Safari, Firefox]

### 屏幕截图或视频（可选）

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### 补充说明（可选）

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Find the documentation that describes Popup and inspect its package reference. Update the relevant text to indicate that Popup was split into @antv/l7-component, then verify that the documentation clearly names the new package and renders correctly.

Written by the indexing model from the issue text.