Make tabs look-and-feel more inline as button group

[jaroet]

Description

Currently the tabs in Evidence are a bit off. For instance the font and size compared to button groups or filters is different. Looking somewhat off when you see them next to each other in your dashboard.

But the main thing my users are mentioning is the forced full width of the tabs when there are only a few options. We use fairly wide screens here and having 2 or 3 options in the tabs look weird. Add an option to set the width to optimal or full.

What problem would this solve?

Looks less weird in the dashboard.

How should it work?

Make the full width optional (default) but with an option to set the width of the <tabs> to something like width=full or width=optimal. Where optimal is more like button group. Just showing the available options and then stop when ready.