Provide a way for a user to reply to a progress note.
Replies to a progress note should be display indented under the parent progress note
Subsequent replies belonging to the same parent progress note should threaded under the parent
The reply thread should be collapsed by default, and a expandable with a single click, so as to avoid making the list of progress notes unwieldy.
Use Case: I want to tag another user to look at the specific progress note but not become a collaborator of the entity