Do not move notifications around while I'm reading them

[Markus00000]

dunst pushes notifications around when either new ones appear or old ones disappear – depending on whether y in geometry is a positive or negative value.

As soon as a notification is being shown and I'm potentially reading it, it should stay at its position until it disappears. At least optionally.

This would be a very nice addition for people who are as bad as I at reading notifications that suddenly move once or twice across my screen just to disappear before I've read to the end.

[knopwob]

This should be relative easy to implement by expanding the sorting option. At the moment you just can switch between sorting by urgency or time where the newest notification is always pushed to the top.

An additional option to reverse the sorting by time would add the notification to the botton, so the old notifications stay in the place they were.

Maybe I'll have some time over the holidays to work on this.