Add spinner to student card form

core/static/bundled/htmx-index.js

@@ -1,3 +1,11 @@
 import htmx from "htmx.org";
 
+document.body.addEventListener("htmx:beforeRequest", (event) => {
+  event.target.ariaBusy = true;
+});
+
+document.body.addEventListener("htmx:afterRequest", (event) => {
+  event.originalTarget.ariaBusy = null;
+});
+
 Object.assign(window, { htmx });