Save the position of the pop-up window containing the slider

[romainrichard]

I'm running Ubuntu 16.04.2, I'm not sure if this affects other versions of Desktop Dimmer or not as I can't test them.

Whenever I click on the Desktop Dimmer icon and hit "Show", the pop-up always shows up in the middle of the screen. I can manually move it around to be where I wish it would show up, and then the pop-up will continue showing up there whenever I hit the "Show" option again.

That is until I restart Desktop Dimmer, at which point I need to move the pop-up again. It would be nice if we could save the position of the pop-up in the settings and have Desktop Dimmer use that whenever it is required to display the pop-up.

[romainrichard]

With version 2.9.0, Desktop Dimmer doesn't remember the position of the pop-up at all. As in, if I move the pop-up to a different position, click somewhere else (to dismiss the pop-up) and bring the pop-up back again, it will be drawn back at the default position instead of the one I left it at. So there was a bit of regression for this particular issue.