Configurable depth in "Contents" area
The "Contents" area at the right-hand side always displays two levels. As shown in the screenshot below, this isn't always ideal. It would be great if the "Contents" area respected the document's toclevels
attribute.
On a related note, I believe it would make sense for Antora to ignore the toc
attribute. Given that the "Contents" area effectively serves as a ToC, having a separate ToC in the document looks a bit redundant to me.