fix(loading): screen readers no longer incorrectly announce spinner (#…

…21116)

fixes #21107

core/src/components/loading/loading.tsx

@@ -196,7 +196,7 @@ export class Loading implements ComponentInterface, OverlayInterface {
         <div class="loading-wrapper" role="dialog">
           {spinner && (
             <div class="loading-spinner">
-              <ion-spinner name={spinner} />
+              <ion-spinner name={spinner} aria-hidden="true" />
             </div>
           )}