Add support link in the SonarQube Cloud UI

Add a link to the SonarSource Support site in the SonarQube Cloud UI. This make it easier for admin to create tickets and avoid direct emails/phone calls.

It would also allow Sonar to advertise their support services if a user does not have a it today.

Hello @peter-ho_prud, I see that you’ve filed a support ticket for this request as well. In order to not duplicate efforts, we’ll handle it there.