Implement footer across all pages

[crasskitty]

Footer Design: https://www.figma.com/file/4jw0XVE1i4bBLbHBIp6MoT/PLUMINITE?node-id=568%3A3

Footer design on a fully designed page: TBD (WAITING FOR DESIGNS)

Everything will need to link to the appropriate places.

• Terms of Service will be a PDF, waiting on legal for it.
• FAQ is a github doc, waiting for @zavodil to merge my pull request, then will link it
• Report Content link : https://2biqpwq7khk.typeform.com/to/FgnGmWij

[sxurik]

Footer created in PR #11, with placeholder urls in links for now.