[Admin] Add a thing to see who's been active, not just the number

[leowilkin]

Describe the problem

ok - here's the pitch. on the team page as an admin, I can see how many people have been active in the last 30 days, but I can't tell who tf they are - esp when like 50% have been active, but the other half havent.

can you add something to the team page that you can toggle (?) to see who's been active, like a green pulse or something...

maybe when you click on the thing that says how many active teens there have been?

Describe the feature/solution (optional)

No response

[leowilkin]

https://github.com/hackclub/hcb/blob/9d308531227888e63cb5afe4ffbe405bc6b1b225/app/views/events/team.html.erb#L10 might be here?