A11y: update roles for picker menus (#55885)

Author: heiskr

src/tools/components/Fields.tsx

@@ -16,7 +16,7 @@ export const Fields = (fieldProps: {
   const { open, setOpen, items, onSelect, renderItem } = fieldProps
 
   return (
-    <ActionList selectionVariant="single">
+    <ActionList selectionVariant="single" role="menu">
       {items.map((item, i) =>
         item.divider ? (
           <ActionList.Divider key={`divider${i}`} />
@@ -42,6 +42,7 @@ export const Fields = (fieldProps: {
                 textAlign: 'left',
               },
             }}
+            role={item.extra?.arrow || item.extra?.info ? 'menuitem' : 'menuitemradio'}
           >
             {renderItem ? renderItem(item) : item.text}
           </ActionList.Item>