Undoing habits update

I think this could do with some refinement.

Sometimes I accidentally hit done on a habit and it is only possible to undo for the short time frame where the undo button is displayed. This is very easy to miss and if you, do I am not aware of an option to set the habit to incomplete again.

I also find it slightly obtrusive that the undo button appears when does because it can get in the way of checking other days.