All active participants should be displayed within the same thread

[Weiko]

Scope & Context

The frontend should only display the recipients that have "from" as a role meaning they've sent at least 1 message in the thread.

Current behaviour

Currently we only display 1 "participant".

Desired behaviour

We want to display at least 2 "participants" in the UI

Technical inputs

  getTimelineThreadsFromPersonId(personId: "") {
    body
    numberOfMessagesInThread
    read
    receivedAt
    senderPictureUrl
    senderName
    subject
  }

  getTimelineThreadsFromPersonId(personId: "") {
    body
    numberOfMessagesInThread
    read
    receivedAt
    recipients {
        displayName
        pictureUrl
    } 
    subject
  }

[Weiko]

@bosiraphael to update BE with the new recipients list

[Weiko]

@bosiraphael actually, before doing that, the BE should probably adapt the structure of TimelineThread so it contains all the messages as well; In preparation for the ticket that will add the opened thread component.

[bosiraphael]

@Weiko Good point

[Weiko]

Blocked by #3450