Amend "Add conditions" button once one condition is added #2476

There is a usability issue with conditional questions which we should fix before deployment.

The orange button to "Add conditions" is greyed out once a first condition has been added. People see this more than the blue link text otherwise.

We could either shift the "Add Conditions" button down the page and not grey it out or remove it. I think we should try to keep a standard look and feel to other settings so blue link like “Add option” may be best