Remixicon : nouvelles icônes (#473)

assets/sass/_theme/blocks/agenda.sass

assets/sass/_theme/blocks/contact.sass

assets/sass/_theme/blocks/files.sass

assets/sass/_theme/blocks/gallery.sass

assets/sass/_theme/blocks/organizations.sass

assets/sass/_theme/blocks/pages.sass

assets/sass/_theme/blocks/posts.sass

assets/sass/_theme/blocks/programs.sass

assets/sass/_theme/blocks/projects.sass

assets/sass/_theme/blocks/sitemap.sass

assets/sass/_theme/blocks/testimonials.sass

assets/sass/_theme/blocks/video.sass

assets/sass/_theme/blocks/volumes.sass

assets/sass/_theme/configuration/components.sass

assets/sass/_theme/configuration/icons.sass

assets/sass/_theme/dependencies/glightbox.sass

assets/sass/_theme/dependencies/splide.sass

assets/sass/_theme/design-system/button.sass

assets/sass/_theme/design-system/footer.sass

assets/sass/_theme/design-system/header.sass