ALL links should use either <router-link> or <a>

[luxaritas]

This is a significant accessibility issue, and also prevents the link from being properly displayed by the browser when hovering over it. One big area this happens is in the nav, but this is true for everywhere on the page. As a rule, if the user clicks something and that causes the page to change, in the end it should always be rendered as an anchor tag (which router-link also does for us)