fix(viewer): make Full-Width toggle actually toggle width; center default at ~780px#159

andrey-golovko wants to merge 2 commits into

alecdotdev:masteralecdotdev/Markpad:masterfrom

andrey-golovko:fix/full-width-toggle-center-prandrey-golovko/Markpad:fix/full-width-toggle-center-prCopy head branch name to clipboard