Connect formspree on "Containment database" page to a separate form

[lagerros]

Currently this goes into the same place as the "about" page. We want to separate them out so we can handle them in separate pipelines.

http://epidemicforecasting.org/containment

Lmk if you need access to the formspree account for this and I'll add you

[wolverdude]

New form endpoint: https://formspree.io/moqnwzlb