Consider the project to be manageable between different users
Situation: project is only edited and consulted by one user. Consider to be manageable by different users, from edit to consult data, by:
- transforming the created_by column in a text column and change the name to managed_by.
- adapt the tests
- add a field "managers" where everyone can edit or remove people, not themselves.
A shareable consultation of the data will be addressed in another issue.