Add copy button to fields in Identities and Contacts

[birdsarah]

Is your feature request related to a problem? Please describe.
I frequently go to phone book to get someone's slack, github or email. It's extra steps and you often end up copy an extra space if you manually highlight and Ctl+C.

Describe the solution you'd like
An html copy button in all those fields.

Describe alternatives you've considered
None. This is clearly the best idea. It's shocking you haven't built this already. Why don't I have the thing I want now????

I haven't. This idea just popped in my head. Any solutions welcome.