Add chat down to job offers

To improve the interest of the Job board we would need to implement a chat down to the job offers.

Users ask more interactivities at this place. They want to be able to comment job offers, ask questions about it, tag friends who could be concerned by this. Ask directly here for collaboration with other people they know.

Users want to be able to react via emoji directly on job offer. It should be nice as well to target then after people who react on.

Old accounting Protocol