Update changelog

CHANGELOG.md

@@ -14,6 +14,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Upgraded `@ionic/angular` from version `8.7.3` to `8.8.1`
 - Upgraded `svgmap` from version `2.14.0` to `2.19.2`
 
+### Fixed
+
+- Fixed an issue with the detection of the thousand separator for the `de-CH` locale
+
 ## 2.249.0 - 2026-03-10
 
 ### Added