v3.3.0

Adds game completion certificated authored in HTML—available in a user's Profile after the game ends.

Adds game grouping and search in the top-level UI.

Matching UI release:
https://github.com/cmu-sei/gameboard-ui/releases/tag/3.3.0

What's Changed

• Save customized HTML templates to generate dynamic certificates by @sei-jbritton in #35
• Minor patches to handle irregular database state by @sei-jbritton in #36
• Limit unpublished game access to only designer & tester roles by @sei-jbritton in #37
• Add game grouping and enhanced game search by @sei-jbritton in #39

Full Changelog: 3.2.1...3.3.0