api/views/errors: Handle HTTP 422 errors
api/views/errors: Handle HTTP 422 errors

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