v0.12.38 event form bug fixes

frontend/src/components/UserManagerModal.jsx

@@ -290,6 +290,9 @@ export default function UserManagerModal({ onClose }) {
   return (
     <div className="modal-overlay" onClick={e => e.target === e.currentTarget && onClose()}>
       <div className="modal" style={{ maxWidth: 600, width: '100%' }}>
+        {/* form wrapper suppresses Chrome Android's autofill chip bar; autoComplete="off"
+            on individual inputs is ignored by Chrome but respected on the form element */}
+        <form autoComplete="off" onSubmit={e => e.preventDefault()}>
         <div className="flex items-center justify-between" style={{ marginBottom: 20 }}>
           <h2 className="modal-title" style={{ margin: 0 }}>User Manager</h2>
           <button className="btn-icon" onClick={onClose}>
@@ -421,6 +424,7 @@ export default function UserManagerModal({ onClose }) {
             )}
           </div>
         )}
+        </form>
       </div>
     </div>
   );