Issues with the list of contributors for a library

This was reported on the ML, but here's the problem report.

https://www.boost.io/library/1.87.0/filesystem/

The "This Release" tile contains people [who didn't contribute](https://github.com/boostorg/filesystem/compare/boost-1.86.0...boost-1.87.0) to the 1.87.0 release, namely Beman Dawes. I think, this tile should only list people who actually contributed to the library release.

In the "All Time", library authors are titled as "Contributor". I think, they should be titled as "Author" (and listed first), as in "This Release".

Furthermore, I think the "This Release" tile should be moved to just above the "All Time" tile to group all contributor info together and bring library description higher. Library description is more important to users, and IMO should be provided first. Also, it would make sense to rename "This Release" -> "Contributors To This Release" and "All Time" -> "All Time Contributors".