[Feature request] Groups separator

[szpanel]

I'm using picky as a price picker and at some point I thought that I'd like to have a separator located between PickerGroups.
The image below shows an example of the location of such a separator (absolute positioning).

I think one implementation approach to the separator would be a PickerGroup with a single PickerItem element that has scrolling disabled and custom style that i.e. allows to change the width.

It would be really cool if you would consider such functionality 😊