2fa

When trying to run tailscaled in a FreeBSD jail, it produces this error:

# tailscaled
logtail started
Program starting: v1.10.0, Go 1.16.7: []string{"tailscaled"}
LogID: 2a3b18aa8ca610c035fa561e92de5aa2113e31ea008a574d5e7a89a3690d212e
logpolicy: using system state directory "/var/db/tailscale"
creating link monitor: devd dial error: dial unixpacket /var/run/devd.seqpacket.pipe: conn

Describe the feature you want:
It would be nice if, by default, the theme of the extension matches the system (browser) theme.

Why do you want this feature in Authenticator?
This is how most mobile and desktop applications and extensions work. And this is what most users expect.

Tasks:

• add docs to token strategy (godoc)
• add links to the readme (api-key, bearer, x-header)

In other words, on the login screen users should be able to press enter to log in.