fix: Hidden element should not accessible for accessibility

Author: zombieJ

src/Item.tsx

@@ -69,13 +69,19 @@ function InternalItem<ItemType>(
     };
   }
 
+  const overflowProps: React.HTMLAttributes<any> = {};
+  if (mergedHidden) {
+    overflowProps['aria-hidden'] = true;
+  }
+
   let itemNode = (
     <Component
       className={classNames(!invalidate && prefixCls, className)}
       style={{
         ...overflowStyle,
         ...style,
       }}
+      {...overflowProps}
       {...restProps}
       ref={ref}
     >

tests/responsive.spec.tsx

@@ -49,6 +49,13 @@ describe('Overflow.Responsive', () => {
     });
     expect(wrapper.findRest()).toHaveLength(1);
     expect(wrapper.findRest().text()).toEqual('+ 2 ...');
+    expect(
+      wrapper
+        .findItems()
+        .find('div')
+        .last()
+        .prop('aria-hidden'),
+    ).toBeTruthy();
   });
 
   it('only one', () => {