Enable autocomplete for login fields

[kyle-ssg]

Is your feature request related to a problem? Please describe.

#3980 introduced disabling autocomplete in places where it isn't necessary. It works, however, we do want autocomplete on login and the email field of signup.

Describe the solution you'd like.

Add a property enableAutocomplete to Input

Describe alternatives you've considered

n/a

Additional context

No response