Add autocomplete attributes to password forms - Fixes #2229

[lindapaiste]

Fixes #2229

Changes:

• Add autoComplete attributes to password input fields to help password managers. https://www.chromium.org/developers/design-documents/form-styles-that-chromium-understands/
  • autoComplete="current-password" on login or password verify
  • autoComplete="new-password" on signup and password change/create
  • Also add autoComplete="email" and autoComplete="username" to complete the form.
    • Note: we have not fully implemented the spec on the NewPasswordForm because we should have a hidden input with the username.
• Change type="text" to type="email" on email fields. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/email

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123

Prior to this change, Chrome actually guesses wrong on the /account page. It shows the "Suggest a strong password" dialog on the "Current password" field and the "Manage passwords" dialog on the "New password" field. After the change it shows the correct one.

[raclim]

Great catch, thanks for these updates! Going to add this in as well!