templates/settings/club: Use "readonly" helper
templates/settings/club: Use "readonly" helper

This makes sure we don't try to set "account.club.id" when "account.club" isn't set.

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