Ability to reorder cards within a column, with drag target shadows/indicators or animated direct reorganization

[nekohayo]

Currently, it is impossible (or nearly impossible) to vertically reorder tasks within a column (it is only easily possible to move tasks between columns, and each time you do that the task gets put at the bottom end of the column), which makes it impossible to use this as personal kanban tool.

It should allow you to move any task to any vertical position in any column, and show a visual indication during drag (with a "shadow" / insertion indicator), between existing cards, to show where the card would get moved/inserted to.

While dragging/moving a card, the mouse cursor should be only the "move" (closed hand) cursor, not the "closed hand with + sign" (copy drag) cursor. When hovering an invalid area (such as margins between columns) during drag, it should show some sort of "invalid" cursor.

[nekohayo]

An alternative to the indicators/shadows approach is to do like Trello and Lonewolf, and to preview the reordering of tasks in realtime with animations, like this, but I suppose it might be more complicated to implement and to "get it right":

Screencast.from.2024-01-11.09-46-04.webm