v3.16.7

Both sites

• Ensure coordinate questions use correct dimensions by @jsharkey13 in #1354
• Pre-computed joins for anon. analysis DB by @mwtrew in isaacphysics/isaac-api#681
• Bug: Event leader waiting list empty by @mwtrew in isaacphysics/isaac-api#682

Physics

• Book index pages as content objects by @jsharkey13 in isaacphysics/isaac-api#673
• Change nuclear feedback messages by @sjd210 in isaacphysics/isaac-api#683
• Upgrade chemistry checker -- see https://github.com/isaacphysics/chemistry-checker-js/releases/tag/v0.1.0.

Full App Changelog: v3.16.6...v3.16.7
Full API Changelog: isaacphysics/isaac-api@v3.18.3...v3.18.4