Add U2F as 2FA option for desktop for premium or Duo Security organization users

Desktop app with Bitwarden account secured with Duo Security produces error message when U2F option is chosen at login:

"Your browser does not support U2F token authentication.

Please use a U2F compatible browser."

I switched to Bitwarden in part because it could use U2F for its 2FA but this should extend to the desktop apps, not just browser extensions.

I don’t think Duo supports U2F outside of the browser.