Synchronize UI with project authorization implementation

[ciyer]

Changes

Show number of members in the info bar

Add members section to settings

Adapt UI to privileges available to role

Editor and Viewer can only see members

Editor and Viewer cannot delete projects

Editor can change certain metadata

Viewer cannot add sessions, data sources, or repos

Viewer cannot edit metadata

Testing

• Create two users
• Create a project 1 as user 1, and give user 2 viewer access to the project
• Log in as user 2 and check the user can only view the project
• Create a project 2 as user 1, and give user 2 editor access to the project
• Log in as user 2 and check the user can edit the description and name, but not other metadata
• Check that user 2 can add sessions, data sources, and repositories

/deploy renku=release-0.52.x renku-data-services=build-authorization-pt2

[RenkuBot]

You can access the deployment of this PR at https://renku-ci-ui-3119.dev.renku.ch

[RenkuBot]

Tearing down the temporary RenkuLab deplyoment for this PR.