Bring back improved auth labels from pre-reset
The following changes were done pre-reset and should not have been left out of the update:
What is your email? →
Please tell us your passphrase, too. →
New Passphrase (for generating new one) and
Passphrase (for existing one)
I (@chreekat) suggest changing the form in the auth module to use "Email" and "Passphrase", re-use it in snowdrift for expedience, and create a second form in snowdrift that uses "Email" and "New Passphrase".