controllers.flight: make more strings translatable
controllers.flight: make more strings translatable

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