Maintain Dragged Item Opacity During Drag

[mohitsainiknl]

Hi SortableJS maintainers,

I'd like to propose a feature that would improve the user experience for drag-and-drop interactions: the ability to control the opacity of the dragged item.

Currently, the dragged item's opacity is reduced (default 0.5) during the drag operation. While this might be suitable in some cases, it can sometimes make it difficult for users to track the position of the item, especially for elements with:

• Complex visuals
• Semi-transparent elements

This feature will shine if we make the ghostClass fully transparent.