Navigation widget uses links instead of routing

[arranbartish]

This is a SPA and we should using the routing as part of the navigation and not the browser behaviour of clicking a link.

When a user clicks a link the browser navigates. This will unload the app and reload the page... not exactly a SPA.

• Update the links to be click able components that result in a route navigation
• Update the clickable components to look like a link

this was an issue introduced by #16

[arranbartish]

done as part of pull request #22