Updating font style, background, QR code animation and google-maps customization

@mmeiers @swbloom @stulees @donnapep this PR adds in some styling to the background (images didn't fit well with the flat-design style so have worked out a method to fade-in/out of radial gradients to give some depth - colours are experimental while I finish the SVG colouring) and font. Added animation to the QR code - had some difficulty keeping it smooth with the transition over such a short distance, and a scan effect. Will link this to the touch function so that it is triggered at different times. Added some customization to google-maps. Thanks!