Performance of the stars page for repos with many stars is pretty bad, with the page fetching avatars and triggering DID resolution for all users shown on the page (~820 for tangled.org/core for example). This PR adds pagination to only show 30 users per page, and also only resolve those DIDs and avatars.
Sorry I didn't catch this when I implemented the stars page, I didn't have a test repo with enough stars to run into this (I also don't have enough test accounts)