separate engagement buttons for main template

main/templates/main/main_article_page.html

main/templates/main/main_articles_page.html

main/templates/main/main_contact_page.html

main/templates/main/main_crossroad_page.html

main/templates/main/main_hoax_page.html

main/templates/main/main_home_page.html

main/templates/main/main_people_page.html

main/templates/main/main_person_page.html

main/templates/main/main_program_page.html

main/templates/main/main_results_page.html

main/templates/main/main_search_page.html

main/templates/main/main_simple_page.html

shared/static/styleguide2/main.css

shared/static/styleguide2/pirati-ui.svg

shared/templates/styleguide2/articles_page.html

shared/templates/styleguide2/home_page.html

...leguide2/includes/molecules/navbar/additional_button.html

...es/styleguide2/includes/organisms/layout/main/navbar.html

...mplates/styleguide2/includes/organisms/layout/navbar.html