Editing a task's first chars leads to jumping it to another position in the list

[Strubbl]

The tasks are always sorted alphabetical by default. If i click on the edit button and change the first chars from a task, the tasks moves to another position on the list. This gets worse if my list is longer than a full page and the task i am typing chars into is hidden now. Of course this is a minor bug, but it might improve the user experience for editing existing tasks a lot.

It would be nice, if the task, which i am currently editing, gets only resorted when i hit save.

[EpocDotFr]

Linked to #22