Remember last window position on startup

[bbsixzz]

Currently the app doesn't remember window position after closing, it always opens on an awkward place near the dock.

[dweymouth]

The Fyne UI library has no API (yet) for remembering window position. As a quick fix I can have it open in the center of the screen as there is an API for that (do you think that would be preferable)? Otherwise will need to look into other packages or requesting it be added to Fyne (and maybe trying to add it myself).

[bbsixzz]

I think center would be better, at least for my OCD :]