SDA-4443_4444: Adding A11Y to Close and Prevent enter while pod is disabled

spec/__snapshots__/aboutApp.spec.ts.snap

@@ -49,6 +49,7 @@ exports[`about app should render correctly 1`] = `
         className="AboutApp-close-button"
         data-testid="CLOSE_BUTTON"
         disabled={false}
+        onKeyDown={[Function]}
         onMouseDown={[Function]}
         title="Close"
       >