access token: filter displaced access tokens by scope and user

The organization access token page currently shows all the access tokens issued in the organization. For administrative tasks we should have an option to filter the access tokens also by scope (personal, project, organization).

For personal access tokens it also makes sense to first of all display some information about the user that is the owner of the access token and also allow filtering the list based on a specific user.

Task Breakdown:
- Design filter UI
- Modify GraphQL field to accept a filter based on the mentioned criteria