[task] paginate our contributors

[tyliec]

Context

On the website, we have a growing list of contributors to some of the projects the group works on (uipa, hierr, ...etc).

This list of contributors used to only be code based (querying for GitHub contributors), but with this PR #66 we now have support for listing non-GitHub contributors (through the https://allcontributors.org/ spec).

As the number of contributors gets larger and larger, the amount of time it takes to scroll through the page gets larger and larger as well. We should probably figure out a solution for this problem by either adding some sort of pagination, or by limiting the amount of people shown at any given time.