fix(layout): per-section footer constraints for multi-section docs (SD-1837)#2022

tupizz wants to merge 2 commits intomainsuperdoc-dev/superdoc:mainfrom

tadeu/sd-1837-footer-per-section-marginssuperdoc-dev/superdoc:tadeu/sd-1837-footer-per-section-marginsCopy head branch name to clipboard