Only include APPROVED users for stats on homepage

[aaronkanzer]

Cc @kabilar -- per our fix in LINC

The current query on the landing page that shows stats does not filter by user type (e.g. it takes in account REJECTED uers)

This PR includes the proper query.

[kabilar]

Thank you, @aaronkanzer.

Hi @waxlamp, we noticed this behavior on lincbrain.org where the users count on the homepage included those users with a STATUS of APPROVED, PENDING, INCOMPLETE and REJECTED. Presumably the desired behavior is only to count the users who are APPROVED.