* MM-22706: pass along set_online flag in websocket response
To let the client know whether a user has created a post without
being online or not, we get the set_online query param and
pass it down to the websocket event being passed down to the client.
With this PR, the "data" field of the `posted` event will contain
a `set_online` boolean field set to true/false depending on the
query_param set_online value set in the createPost call.
* Setting to false for auto responder
Co-authored-by: mattermod <mattermod@users.noreply.github.com>