Link authors without an author page to the team page

[saloni-nd]

Core problem

On some topic pages and articles, some authors don't have an author page, so their names don't have an underline.

It looks a little odd, and their names could be linked to the team page.

Context

Example of Marcel's name not underlined on the topic page for Population Growth.

We discussed this in Slack here.

[ikesau]

We can quickly fix this by changing

owid-grapher/site/gdocs/components/LinkedAuthor.tsx

Line 33 in c44dec6

if (!author.slug) {

to return an tag linking to /teams (even if that's the wrong destination for external contributors)

[ikesau]

Fixed by #3826