frontend/templates/base: Add Intl polyfill
frontend/templates/base: Add Intl polyfill

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