flowchart

Is your feature request related to a problem? Please describe.
I'd like to have scrollbars that I can use. It would help me with visual orientation on the workspace.
I'd like to be able to scroll with the mouse wheel, instead of zooming in / out.

Describe the solution you'd like
A configuration option to enable scrollbars.
A configuration option to set the behaviour of the mouse whe

问题描述
请用简洁的语言描述你遇到的bug，至少包括以下部分，如提供截图请尽量完整：

1. 问题触发的条件：如图所示

2. 期望的表现：点击控制条的时候应该取消文本的编辑聚焦，同时我认为应该提供个方法，来取消编辑框的聚焦（目前我这边有个场景是这样的，就是双击节点的时候，在右侧出现属性面板，但是在打开面板的同时也触发了文本编辑，大概是这个需求），
3. 实际的表现：控制条放大/缩小按钮点击后，文本编辑框的位置不对

关于文档的问题

接触了LogicFlow好几天了，在读文档的过程中发现了，自我感觉这几处的描述不是很正

It'd be great to be able to load an external history upon initializing the undo/redo feature.

It's already supported by the Undoo lib, through the import(history) API, so it should be trivial to implement.
https://github.com/fabioricali/undoo#undooimporthistory--undoo

I suppose changing the UndoProps by adding a initialHistory prop would do the trick:

export interface UndoPr