docs: update CHANGELOG for medium audit fixes

Author: datlechin

CHANGELOG.md

@@ -21,6 +21,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Use semantic selected-text color instead of hardcoded white in selected rows
 - Use proper CommandGroup for full-screen shortcut instead of event monitor
 - Use sheet presentation for all file open/save panels instead of free-floating dialogs
+- Replace event monitor with native SwiftUI .onKeyPress() in connection switcher
+- Extract reusable SearchFieldView component from 4 custom search field implementations
+- Replace custom resize handle with native NSSplitView for inspector panel
 
 ### Added