Add href to the tabs in groups and projects list

The tab in groups and projects list (e.g. https://gitlab.com/dashboard/groups) doesn't have a proper href attribute assigned. This prevents options like "Open link in ..." in the browser context menu from functioning properly

We can fix this by passing an object like { href: '/' } into the title-link-attributes prop.

Possible solutions

We could either tweak the TabsWithList component to assign this dynamically or pass an additional property from the tabs prop.

Implementation Guide

Needs refinement