User authenticator needs to select from Active users only

[Gwalior-84]

Expected Behavior

When a new user logs in, the authenticator should check against only Active mSupply users.

Current Behavior

If the user has more than one entry in mSupply, one being Active and the other(s) having been synced from sync satellites, then the authenticator can check against an inactive version of the mSupply user.

Possible Solution

Steps to Reproduce (bugs only, delete if not applicable)

1. Take system which has a user who normally works on a satellite server. Check to make sure that the user exists on the central server as an inactive user with no email address.
2. Create the same user, using the same spelling, on the central server, with valid (non sussol) email address.
3. Try to log the user in to the dashboard.
4. Observe the error (sometimes? every time?)