make sure windows that are minimized are restored (#853)
make sure windows that are minimized are restored (#853)

jakesyl/ruby-card,Stvad/anki,socialpercon/anki-1,hssm/anki,jakesyl/ruby-card,holycrepe/anki,hssm/anki,weihautin/anki,sunclx/anki,xuewenfei/anki,abeyer/anki,florianjacob/anki,eduOS/anki,ospalh/libanki3,LucasCabello/anki,jkitching/anki,subfusc/anki,go38/anki,Arthaey/anki,kenjhim/anki,weihautin/anki