Issue #3485676 by grimreaper, pdureau: [5.1.0] Remove UI Patterns Legacy dependency

README.md

components/alert/alert.twig

components/dropdown/dropdown.twig

components/modal/modal.twig

components/nav/nav.twig

components/navbar/navbar.twig

components/navbar_nav/navbar_nav.twig

components/offcanvas/offcanvas.twig

components/table/table.twig

components/toast/toast.twig

templates/comment/comment.html.twig

templates/commerce/cart/commerce-cart-block.html.twig

templates/commerce/cart/commerce-cart-empty-page.html.twig

...e/checkout/commerce-checkout-form--with-sidebar.html.twig

...es/commerce/checkout/commerce-checkout-progress.html.twig

templates/menu/menu-local-tasks.html.twig

templates/menu/menu.html.twig

templates/region/region--help.html.twig

templates/system/breadcrumb.html.twig

templates/system/mark.html.twig