Swapped for NuxtLink

[AlexanderKaran]

As part of the Nuxt review #196, an issue was found with the MPA test. We should be using the Nuxt Link; however, this means we do not strictly meet our Glossary

Multi-Page Application (MPA)

In an MPA, each navigation triggers a full page load by the browser and the server (or CDN) responds with a complete HTML document, so the browser always receives ready-to-display content. JavaScript is optional and typically used only for progressive enhancement. In-memory state is lost on every navigation. Because content is present in the initial HTML response, MPAs are naturally SEO-friendly.

See #240 for more details, but something needs to change cc @Fuzzyma