Dynamic drag speed for both long and short lists

[ibraheem-nt]

I am using the selector for long lists (more than 80 items). What I had to do to support better navigation is to dynamically modify the drag speed multiplier from this:

direct-select-flutter/lib/direct_select_container.dart

Line 236 in 452bc6b

dragDy * widget.dragSpeedMultiplier);

To this:
dragDy * (widget.dragSpeedMultiplier * (_currentList.items.length/11)));

[vizhan-lanars]

@ibraheem-nt I guess you can achieve that by modifying the dragSpeedMultiplier parameter.