Don't shift the view when moving tasks to DONE on the scrum board

Some user stories consist of many (>10) tasks.  The sprint board adapts the story's swimlane length to accomodate all of them.

Our way of working is to add small tasks on the go.  So we will have some tasks in TODO, less tasks in "IN PROGRESS" and "REVIEW", and, after a while, many tasks in "DONE".

Now when e.g. during sprint review, or daily scrum, moving a number of tasks to the DONE lane, they are appended to the list of other tasks, which shifts the focus down, forcing us to scroll up.

It would be more convenient to not change the current view while dragging tasks to DONE.