Add drag previews to ListView (#3004)
* add drag preview for listview items
* improve draggable story
* show all content in preview and hide by slot
* integrate with existing listview item styles
* formatting
* switch story to use actiongroup
* fix test from story change
* add locale direction to drag preview
* fix badge grid position
* use logical start for preview stack
* round pixels in preview position
* round height of preview to even number
* rename selectedKeys to draggingKeys
* draggingKeys rename fix
* add an item with a description
* use fixed with for drag preview
* move drag preview into it's own component
* use size-2400 for width
* padd direction via prop
* add an icon to a draggable item in story
Co-authored-by: Daniel Lu <dl1644@gmail.com>
