#4052 - Admins no longer see all projects in the project overview

[reckart]

What's in the PR

• Change role filter such that admin users see everything

How to test manually

• Log in as admin
• Create some user testuser
• Create a new project
• Add testuser as manager to the project and remove admin from the project
• Go to the project overview page
• Check if the project can be found (should be since administrators should be able to see any project even if they have no role in it)

Automatic testing

• PR includes unit tests

Documentation

• PR updates documentation