[#80258290] stream participations on CRUD action
fix typeahead component to only be called once
[#80258290] participations are now properly streamed to users
Merge remote-tracking branch 'origin/master' into stream-participations
Test hack for broken spec
Merge pull request #490 from Tahi-project/stream-participations

[#80258290] New message card missing creator's avatar in participant list