chore(gallery-web): update changelog

Author: samuelreichert

packages/pluggableWidgets/gallery-web/CHANGELOG.md

@@ -10,6 +10,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - We added configurable selection count visibility and clear selection button label template for improved row selection management.
 
+- We added a refresh intervel property, to allow defining an interval (in seconds) for refreshing the content in Gallery
+
 ### Fixed
 
 - We fixed an issue where setting the gallery gap to 0 caused an offset, which made the bottom border of items to dissapear.