[Feature request]`toolbar` tool icons can be extended and dragged to display

[RSS1102]

Is your feature request related to a problem? Please describe.

When there are too many functions on the toolbar, the display may not be complete.

What does the proposed API look like

I hope there can be a navigation bar that can be dragged left and right.

Additional context

[RSS1102]

这里有些展示不全，所以可能需要一个横向滚动条。

[sunsonliu]

不建议引入横向滚动条，建议还是提供“适配宽度，自适应展开收起到更多按钮”的功能

[RSS1102]

不建议引入横向滚动条，建议还是提供“适配宽度，自适应展开收起到更多按钮”的功能

ok

[RSS1102]

same as https://github.com/Tencent/cherry-markdown/issues/340

[guugg]

功能添加了吗

[RSS1102]

功能添加了吗 最近主要在修复bug，下个会版本支持，再等等下。