Make external links clear

[mrlacey]

Suggested new feature or improvement

In the install applications list, there are "learn more" links for each entry. It's not clear that these launch an external browser.

Scenario

The first time I clicked on one of these I was surprised and because the browser was initially slow to respond my first thought was that the app had crashed (again.)

I was expecting navigation within the app.

Additional details

No response