More ARIA roles and labels - Infobox

I’m really happy with your blocks and theme, thanks for them. I started running the accessibility scan at ace.accessibe.com, and I’m getting several warnings, some of which have to do with the infobox block. When the infobox(es) are clickable links, they need a role or aria-label to indicate what the clickable item is. It would be great if you could make this small change to the infobox block, which is otherwise terrific.