Introduce drag and drop to rearrange the queue

I didn't test it for usability on an actual mobile, only tested the mobile drawer on a desktop.

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Remaining issues

Function breaking

• when dragging, tracks can spontaneously and semi-randomly transform to a duplicate of the dragged track (maybe the frontend going faster than the backend can handle?)
• on mobile, the queue items are broken before dragging them
• when moving the song directly after the current song, you can not skip anymore

Cosmetic

• when dragging, the margin gets ignored (probably a listItemDragHandle issue)

To do before merging

• remove test button