senat campaign: Update styles and icons

...nat_campaign/vendor/fontawesome/webfonts/fa-solid-900.ttf

...at_campaign/vendor/fontawesome/webfonts/fa-solid-900.woff

...t_campaign/vendor/fontawesome/webfonts/fa-solid-900.woff2

senat_campaign/templates/senat_campaign/base.html

...gn/templates/senat_campaign/senat_campaign_home_page.html

...gn/templates/senat_campaign/senat_campaign_news_page.html

...templates/senat_campaign/senat_campaign_program_page.html

senat_campaign/templates/senat_campaign/socials_snippet.html