WordPress/wp-admin/js/accordion.min.js

!function(a){function b(a){var b=a.closest(".accordion-section"),c=b.find("[aria-expanded]").first(),d=b.closest(".accordion-container"),e=d.find(".open"),f=e.find("[aria-expanded]").first(),g=b.find(".accordion-section-content");b.hasClass("cannot-expand")||(d.addClass("opening"),b.hasClass("open")?(b.toggleClass("open"),g.toggle(!0).slideToggle(150)):(f.attr("aria-expanded","false"),e.removeClass("open"),e.find(".accordion-section-content").show().slideUp(150),g.toggle(!1).slideToggle(150),b.toggleClass("open")),setTimeout(function(){d.removeClass("opening")},150),c&&c.attr("aria-expanded",String("false"===c.attr("aria-expanded"))))}a(document).ready(function(){a(".accordion-container").on("click keydown",".accordion-section-title",function(c){("keydown"!==c.type||13===c.which)&&(c.preventDefault(),b(a(this)))})})}(jQuery);