AI Impact: Add GitLab Duo Pro seats tile
Proposal
As per #454953 (comment 1892918408) we want to add a tile to the top of the AI Impact dashboard with the GitLab Duo Pro seats: assigned and used information.
We can reuse the component introduced in #460826
Data can be retrieved as per #454953 (comment 1891455251) but we need to be mindful of permissions.
Edited by Brandon Labuschagne