Remove js size animation and only use the opacity one

core/static/bundled/core/accordion-index.ts

@@ -1,33 +0,0 @@
-const updateMaxHeight = (element: HTMLDetailsElement) => {
-  const content = element.querySelector(".accordion-content") as HTMLElement | null;
-  if (!content) {
-    return;
-  }
-  if (element.hasAttribute("open")) {
-    content.style.maxHeight = `${content.scrollHeight}px`;
-  } else {
-    content.style.maxHeight = "0px";
-  }
-};
-
-// Initialize max-height at load
-window.addEventListener("DOMContentLoaded", () => {
-  for (const el of document.querySelectorAll("details.accordion")) {
-    updateMaxHeight(el as HTMLDetailsElement);
-  }
-});
-
-// Accordion opened
-new MutationObserver((mutations: MutationRecord[]) => {
-  for (const mutation of mutations) {
-    const target = mutation.target as HTMLDetailsElement;
-    if (target.tagName !== "DETAILS" || !target.classList.contains("accordion")) {
-      continue;
-    }
-    updateMaxHeight(target);
-  }
-}).observe(document.body, {
-  attributes: true,
-  attributeFilter: ["open"],
-  subtree: true,
-});