Admin UI: Improve work queue when there are child items #733

[fliptation]

Pascal on Sep 15:
#545

Supposed we have this situation:

EMAIL originalWorkId: msg, retries 9
EMAIL originalWorkId: msg, retries 10
MESSAGE (id: msg)
WORK_A
WORK_B
Currently we can only see the original work from the detail of the work item. This is fine but for E-Mails, we should have some special "view" on that list where we only see messages on the top level and all forked items below to have a messaging centric view:

MESSAGE (id: msg) (Status: Sending)
EMAIL (NEW)
EMAIL (FAILED), retries 9
EMAIL (FAILED ), retries 10
MESSAGE (id: msg) (Status: Sent)
EMAIL (SUCCESS), retries 9
EMAIL (FAILED), retries 10
MESSAGE (id: msg) (Status: Undeliverable)
EMAIL (FAILED), retries 0
EMAIL (FAILED), retries 1
EMAIL (FAILED), retries 2
EMAIL (FAILED), retries 3
EMAIL (FAILED), retries 4
EMAIL (FAILED), retries 5
EMAIL (FAILED), retries 6
EMAIL (FAILED), retries 7
EMAIL (FAILED), retries 8
EMAIL (FAILED), retries 9
EMAIL (FAILED ), retries 10
Can we do this with a separate tab in the work queue or maybe a new menu item "Messages" ?

[fliptation]

Mike: Added a separate tab to display Messages and their forked children's work (EMAIL, SMS, etc...) These are displayed like before in all works too