Theme Horse

@Marta For the page title to be a link/clickable you can visit this thread https://www.themehorse.com/support-forum/topic/making-business-page-services-section-titles-links-back-to-pages/. Same thing is discussed there and hope this helps you as well.
I could not understand you first question. Do you want center align the text of the services widgets? If yes then in the dashboard go to Appearance->Theme Options->Design Options Tab->Custom CSS. Paste the following css and click on ‘Save all Changes’.

#content .service-item .service-title {
    margin-right: 60px;
    text-align: center;
}

You can increase or decrease the 60px value to shift the position as you like.