Update CHANGELOG.md with release note from PR #1437

Author: Git Action Bot

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Delete field dialog now includes an archive option (https://github.com/PhenoApps/Field-Book/pull/1413)
 
 ### Fixed
+- Toolbars now use the correct themes (https://github.com/PhenoApps/Field-Book/pull/1437)
 
 ## [v7.1.2] - 2026-02-24