testing: test other aria configs

Author: mystiker

frontend/src/app/core/mud/components/mud-client/mud-client.component.html

@@ -1,8 +1,7 @@
 <div
   class="sr-announcer"
-  aria-live="polite"
+  aria-live="assertive"
   aria-atomic="true"
-  aria-relevant="additions"
   #liveRegionRef
 ></div>