Update src/content/design-system/guides/loading

apps/site/src/content/design-system/guides/loading/design/loading-within-components/content.mdoc

@@ -35,7 +35,7 @@ Description of what will be displayed
     }, 1500);
   }, [inputValue]);
   return <InputGroup label="Enter routing number" width={30} hint="For a valid response use: 647453, all other numbers will show the invalid response" after={validating ? {
-    icon: RefreshIcon
+    icon: ProgressIndicator
   } : <Button onClick={validate}>Validate</Button>} errorMessage={error}>
       <Input invalid={!!error} onChange={({
       target: {