Feature/comp 214 verification of last years answers

Wraps up keeping track of the verification status of last years data. As we don't have last years data yet, the endpoint still has some hardcoded values. The frontend gets a react ref to keep track of the state. This ref is updated when clicking the verify button or when the question value is edited. After that it stays the same. The state is loaded from the open endpoint and also saved in the db (together in a json with all the survey answers etc) when saving the survey. I expect the styling still needs some work but lets wait for feedback.

Also adds a comment box on the service matrix page.