Issue #3324690: Fix svg ext in social media menu footer

css/base/base.css

css/base/utility.css

css/base/variables.css

css/components/action-links.css

css/components/ajax-progress.module.css

css/components/autocomplete-loading.module.css

css/components/book.css

css/components/breadcrumb.css

css/components/button.css

css/components/cke-dialog.css

css/components/comments.css

css/components/content-moderation.css

css/components/details.css

css/components/dropbutton.css

css/components/embedded-media.css

css/components/feed.css

css/components/field.css

css/components/fieldset.css

css/components/footer.css

css/components/footer.pcss.css