Swipe to change order in checklist

### What
To have better UX, user should be able to swipe element to change order on the list (This option is avaible in Google Keep)

### Why
Better UX

Start by locating the Android checklist UI and the code that currently displays or persists checklist item order. Compare the desired interaction with the existing list behavior and Google Keep's swipe pattern. Done means a user can swipe an item to change its position and the revised order remains correct.

Written by the indexing model from the issue text.