Facia cards 2.0

First container under new container regime:

1. `fc-` prefix keeps new code separate from incumbent containers. adds temporary bloat but means the old stuff can be safely retired at a later date
2. presentation logic has been moved from templates/css into new slice scala modelling 

todo:
- remove old `standard`/`list` templates into single `item` template
- large media list (50% image width)
should be removed imo. that's one of the advantages of using source control. leaving old code lying around in comments is a bad habit and will end up messy. I think the fact that nobody knows what it does is even more reason to remove it.