AUTHOR: NOX
CREATED: 2023-03-08
DESCRIPTION: Makes group-connected lists multi-sortable.
LICENSE: Open Source
PUBLISHER: Fr34k.at
VERSION: 1.1
Notes:
The item you use as the drag item (where you hover the mouse cursor when you click to drag) is also the item that is sorted to the top of the collection when you drop it.
The "additionalDemoClass" and "otherAdditionalDemoClass" class is there for demonstration only, so you can see that your own classes can be used in parallel without any negative impact.
If nested lists are used, their group must always be at the same group depth.
The "ui-sortable" and "ui-sortable-handle" class will be added dynamically by jQuery UI. So you don't have to hardcode it!