Administration cog icon may not be initially visible after successful sign in

1. Let Nexus UI time out, on the Repository list screen
2. Sign in
3. Notice that there's no configuration cog
4. Sign out
5. Sign in again ( or refresh browser tab/window)
6. Notice there's a cog now.

Happened on commit dad4714

NOTE:

• Let's look into this, the proposed solution is to remove it but we want to make sure this doesn't have ripple effects