FR : Automatic sorting of the sub-tasks.

[tu2-atmanand]

Right now, while displaying the sub-tasks in the cards, they are kind of static. It will be a nice feature to have them change their order automatically when you complete the sub-tasks.

For example, if I have completed few sub-tasks. The card will look like this :

Using this new feature, the sub-tasks will automatically sort themselves and the card will look like :