Routing/Content Decision component

[listingslab]

This is such an important piece, lets's birth it on the root level and see where it travels

It has to do the following:

• know what pathname is currently in the url and react to it when it changes
• take that pathname and look up the content by slug
• return the main content object and 2 similar ones (by category or keyword)
• display the above with sensible loading & fallbacks