fix(ui-components): replace ?? with the || operator in CloseButton (#53990)

tools/ui-components/src/close-button/close-button.stories.tsx

@@ -9,10 +9,7 @@ const story = {
 type Story = StoryObj<typeof CloseButton>;
 
 export const Basic: Story = {
-  args: {
-    className: '',
-    label: ''
-  }
+  args: {}
 };
 
 export default story;

tools/ui-components/src/close-button/close-button.tsx

@@ -48,7 +48,7 @@ export function CloseButton({
 
   return (
     <button className={classes} onClick={onClick} type='button'>
-      <span className='sr-only'>{label ?? 'Close'}</span>
+      <span className='sr-only'>{label || 'Close'}</span>
       <span aria-hidden>×</span>
     </button>
   );