model/notification: Fixed broken type constants
model/notification: Fixed broken type constants

RBE-Avionik/skylines,Harry-R/skylines,kerel-fs/skylines,snip/skylines,TobiasLohner/SkyLines,kerel-fs/skylines,Turbo87/skylines,RBE-Avionik/skylines,shadowoneau/skylines,RBE-Avionik/skylines,kerel-fs/skylines,Harry-R/skylines,shadowoneau/skylines,shadowoneau/skylines,snip/skylines,skylines-project/skylines,TobiasLohner/SkyLines,TobiasLohner/SkyLines,skylines-project/skylines,snip/skylines,Turbo87/skylines,Turbo87/skylines,Harry-R/skylines,skylines-project/skylines,Turbo87/skylines,RBE-Avionik/skylines,Harry-R/skylines,shadowoneau/skylines,skylines-project/skylines