Add event driven analytics

[gstrauss]

Let's add some event driven analytics to the page so we can understand how people are using the site.

Currently since the site is a single page app we don't see what servers and security profiles people are looking at. If we add some event analytics to some of the controls we should get a better sense of this.

I'm asking around at Mozilla to get some guidance on how best to add this kind of instrumentation.

[gstrauss]

Cloned from mozilla/ssl-config-generator#315

[gstrauss]

Please review prior discussion at mozilla/ssl-config-generator#315

... Following that, with umami.is, here are some guides to adding custom event tracking:

https://docs.umami.is/docs/guides/track-single-page-apps#tracking-custom-events-in-components

[gstrauss]

Please review https://docs.umami.is/docs/tracker-configuration
We probably want data-auto-track="false" instead of the default, and then to selectively add events to track.
See https://docs.umami.is/docs/tracker-functions