Missing styles for add/remove contact button on user profile page in boost

1. Please test on both theme boost and theme clean
2. Create a few users on your site
3. Log in as a user
4. Navigate to another user's profile page
5. Confirm: You don't see a loading spinner next to the "add to your contacts" (or remove from your contacts) link
6. Click the link and confirm that you see the spinner while it's loading and then the state changes (add -> remove or remove -> add)

The loading state will likely be very quick but it should look like this:
Boost:

Clean: