Wherigos: make dialogs "normal" dialog size (no fullscreen)

[eddiemuc]

BTW, I'm still struggling with the full screen dialog approach. I would suggest to either make it a real dialog (WIGs are mostly designed for way smaller screens anyway) or make it a real activity with actionbar.

Originally posted by @fm-sys in https://github.com/cgeo/cgeo/issues/16224#issuecomment-2424199982