DS-2618 by maikelkoopman: add libraries to socialblue theme

assets/css/alerts.css

assets/css/badges.css

assets/css/base.css

assets/css/breadcrumb.css

assets/css/button.css

assets/css/cards.css

assets/css/ckeditor.css

assets/css/comment.css

assets/css/datepicker.css

assets/css/dropdown.css

assets/css/file.css

assets/css/form-controls.css

assets/css/form-elements.css

assets/css/hero.css

assets/css/input-groups.css

assets/css/labels.css

assets/css/list-group.css

assets/css/meta.css

assets/css/nav-tabs.css

assets/css/navbar.css