Improved task moving in Agile board

When working in Agile board (Scrum, Kanban) and moving tasks using drag and drop feature, sometimes it is not clear between which two tasks the moved task will be dropped. Also, when dragging a task and scrolling the screen at the same time, the original mouse position might be lost and placeholder can move unexpectedly. This modification would solve all these situations. The solution is inspired by Jira project management.