HTML Templates: Update Term References & Problem Results UI

Per @Lyla-Fischer and the team's [work in clarifying the proper ORA terms](https://edx-wiki.atlassian.net/wiki/display/ORA/ORA+Vocabulary+and+Definitions), I've tried to clean up any term references (both in copy and HTML attributes) in the static UI markup.

This involves:

* evaluate/evaluation --> assess/assessment
* small sample prompt title copy changes
* adding in the adding in overall peer-based score per question to complete problem UI