[8.19] [Response Ops][Alerting] Add missing acknowledged alert state copy (#226020) (#226090)

# Backport

This will backport the following commits from `main` to `8.19`:
- [[Response Ops][Alerting] Add missing acknowledged alert state copy
(#226020)](#226020)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

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Ops][Alerting] Add missing acknowledged alert state copy (#226020)\n\n##
Summary\n\nIncludes `acknowledged` alert state to inactive
description\n\n<img width=\"798\" alt=\"Screenshot 2025-07-01 at 16 27
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BACKPORT-->

Co-authored-by: Julian Gernun <[email protected]>

Author: kibanamachine

src/platform/packages/shared/response-ops/alerts-delete/translations.ts

@@ -47,7 +47,7 @@ export const INACTIVE_ALERTS_DESCRIPTION = i18n.translate(
   'responseOpsAlertDelete.inactiveAlertsDescription',
   {
     defaultMessage:
-      'Remove alerts that were recovered, closed, or untracked longer than the threshold',
+      'Remove alerts that were recovered, closed, acknowledged, or untracked longer than the threshold',
   }
 );