[Research] Direct communication

[niraymak]

Is your feature request related to a problem? Please describe.
An idea is to make direct communication possible. This way it could be easier to start participating on projects.

Describe the solution you'd like
A research with use cases this could be usefull for and how such a system would work.

Production URL

Additional context
This feature could use the notification system to inform the user about incoming communication.

[RubenFricke]

Specify the differences between call to actions too.

[niraymak]

Reserved for S3 AD students

[niraymak]

To do:
backend:

• delete comment
• testing

[niraymak]

See branch https://github.com/DigitalExcellence/dex-backend/tree/feature/389-direct-communication