fix(admin): polish reviews

Same select-all/row-checkbox accessible-name gap in table view; grid
view already had aria-label on its row checkbox (customer name),
table view was the gap. New adminModeration.selectAllRows key added
across en/ru/hy.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/i18n/translations.ts

@@ -1218,6 +1218,7 @@ export interface Translations {
   };
   adminModeration: {
     search: string;
+    selectAllRows: string;
     allStatuses: string;
     allRatings: string;
     rating: string;