Use Neon passwords if configured
Use Neon passwords if configured

If Neon is present and the logging in user has no password entry
then try using Neon. That way we can seemlessly migrate from Neon
for users who log in while both are configured.

CON-In-A-Box/ConComSignIn,CON-In-A-Box/CIAB-SignIn,CON-In-A-Box/ConComSignIn,CON-In-A-Box/ConComSignIn,CON-In-A-Box/ConComSignIn,CON-In-A-Box/CIAB-SignIn,CON-In-A-Box/CIAB-SignIn,CON-In-A-Box/CIAB-SignIn