chat-cli: print messages only if chat is viewed
%remove-graph (~(notice-remove se i.sez) +.q.upd)
::
%add-nodes
+ ?. (~(has in viewing.session.i.sez) resource.q.upd)
+ [~ session.i.sez]
%+ ~(read-posts se i.sez)
resource.q.upd
(sort ~(tap by nodes.q.upd) ior)
