[15.x.x] Updated doc with sidenav mode#727

tomfacal wants to merge 2 commits into15.x.x-developOntimizeWeb/docs:15.x.x-developfrom

feature/15.x.x-2025-sidenav-modeOntimizeWeb/docs:feature/15.x.x-2025-sidenav-modeCopy head branch name to clipboard