♿️(frontend) announce search loading state for screen readers

Add live region announcement when document search is in progress.

Author: Ovgodd

CHANGELOG.md

@@ -40,6 +40,7 @@ and this project adheres to
 ### Changed
 
 - ♻️(backend) reset collaboration connection in cascade for all children #2507
+- ♿️(frontend) announce search loading state for screen readers #2526
 
 ### Fixed
 

src/frontend/apps/impress/src/features/docs/doc-search/components/DocSearchContent.tsx

@@ -65,6 +65,9 @@ export const DocSearchContent = ({
 
   useEffect(() => {
     if (loading) {
+      if (search || isSearchNotMandatory) {
+        announce(t('Loading documents...'), 'polite');
+      }
       return;
     }