官网折线图平移 demo 无法平移

- [x] I have searched the [issues](https://github.com/antvis/f2/issues) of this repository and believe that this is not a duplicate.

### Reproduction link
[](https://codesandbox.io/s/inspiring-archimedes-x7kk5?file=/src/App.vue)

### Steps to reproduce
不太清楚官网demo的是哪个版本的，现在用最新版本去创建图表，平移功能都会失败

| Environment | Info |
|---|---|
| f2 | 3.8.1 |
| System | - |
| Browser | - |

Start with the linked CodeSandbox reproduction and compare it with the official line-chart pan demo using F2 3.8.1. Identify why panning fails in the latest version, then verify that the demo supports the intended pan interaction without breaking the chart.

Written by the indexing model from the issue text.