Docs fonts are 404

[nilubava]

Context: we have added 2 paths for fonts in all.css since we do not have pathPrefix enabled for docs previews. This leads to fonts paths as 404 for url('/fonts/xxx.woff2') format('woff2').

Solution: Change these to relative paths depending on pathPrefix enabled

Slack message: https://prisma-company.slack.com/archives/C5Z9TH6N9/p1697194908147969?thread_ts=1696497997.420059&cid=C5Z9TH6N9