cli: update `node.1` to reflect Atom's sunset
Refs: https://github.blog/2022-06-08-sunsetting-atom/
This PR removes the note about Atom editor support, as atom has been sunset.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Refs: https://github.blog/2022-06-08-sunsetting-atom/
This PR removes the note about Atom editor support, as atom has been sunset.