require passphrase confirmation

[BenTheElder]

Feature request for a small enhancement: When setting a passphrase while voting, we should require entering it identically in a second field to help prevent setting a typo-ed passphrase and not being able to recall it. I think this is a pretty common "password change" pattern.

[jberkus]

Agreed, this is a desireable feature.

[eddiezane]

We should also validate it is long enough client side before submitting the form. I did a passphrase less than 8 characters and had to do the ordering again after it submitted and refreshed.