frontend: Fix accessible name for AuthChooser Testing story

Author: CODEAbhinav-art

frontend/src/components/authchooser/AuthChooser.stories.tsx

@@ -59,6 +59,7 @@ export const Testing = Template.bind({});
 Testing.args = {
   ...argFixture,
   testingAuth: true,
+  title: 'Authenticating cluster access',
 };
 
 export const HaveClusters = Template.bind({});