chat: add a way to track if the chat view is visible
chat: track visibility of the delegate in messages
chat: transfer input focus to message pane
chat: add custom checks for list threshold handling
chat: add custom checks for pane focus handling
chat: improve glance check and glance workspace
chat: start chat for visible state check
chat: end chat for visible state check
Merge pull request #101 from usirin/glance-on-focus

Glance on focus