[#874515] Footer Fixes

Currently stuck on a few points, could use help & review on everything else in the meantime.

* No way to dismiss 'Privacy Policy' box. Not sure how the design of this is supposed to be? Is it supposed to be if you click anywhere that isn't the email textbox or submit button, the box is dismissed? Because I've had trouble getting that to work for some reason

* Privacy Policy checkbox is unstyled ATM. I want to move on to higher priority items and double-back onto this; I'll make a bug for it.