fix: ensure ruler 0 is visible#2487

harbournick merged 2 commits intomainsuperdoc-dev/superdoc:mainfrom

nick/sd-1875-bug-ruler-0-overflow-its-containers-and-gets-cut-off-on-thesuperdoc-dev/superdoc:nick/sd-1875-bug-ruler-0-overflow-its-containers-and-gets-cut-off-on-theCopy head branch name to clipboard