Focus behavior in members list
When using the tab key to move around the member list, the focus lands only on the more options buttons for the members. Not only is this confusing as they don't have a proper a11y label, but a bigger issue is that a visually impaired user has no idea on which of the members he actually operates. Fixing it though might be a little bit tricky, because if the GtkListItem would get focus, getting any meaningful a11y information from the two level deep actual item would require I actually don't know what, maybe some a11y string for a member? Because the labelled-by relation can not be recursive, e. g. a labelled-by widget can not have a reference on something which also has a labelled-by relation. Any thoughts?