Site URL: https://roadrunner-contrabass-tsrn.squarespace.com Can I add a sidebar that scrolls continuously to the footer that shows up on mobile, as well? I want to include brief intro text and a small photo to explain what the blog is about and maintain brand continuity. I also would love to show a list of the categories of blog posts on this sidebar, recent posts, and social links. I know this is possible on WordPress. Is this possible with Squarespace? Thank you! https://roadrunner-contrabass-tsrn.squarespace.com/ page password: pleasehelp!