Flag a message as urgent or important
Flag a message as urgent or important to ensure that it over-rides any notification settings on the recipient side that might prevent them from getting a notification.
Per Dalton conversation on 11/14/18 - Potentially activate in similar manner to AskAlan. Chat app looks for certain words and when user hits send, ask user "Do you want to mark as urgent?" and if selected, log the fact that user marked as urgent and when activated, override any muting in that chatroom.