Merge pull request #28 from noesya/fix/mobile

assets/js/theme/nav/mainMenu.js

assets/sass/_theme/_configuration.sass

assets/sass/_theme/_utils.sass

assets/sass/_theme/blocks/pages.sass

assets/sass/_theme/blocks/posts.sass

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

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

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

assets/sass/_theme/sections/diplomas.sass

assets/sass/_theme/sections/persons.sass

assets/sass/_theme/sections/posts.sass

assets/sass/_theme/sections/programs.sass

assets/sass/_theme/sections/sitemap.sass