chore: update changelog

Author: yordan-st

packages/modules/data-widgets/CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+### Fixed
+
+- We fixed an issue where custom content would overflow its container cell.
+
 ## [3.7.0] DataWidgets - 2025-11-11
 
 ### Changed

packages/modules/data-widgets/src/themesource/datawidgets/web/_datagrid.scss

@@ -266,6 +266,7 @@ $root: ".widget-datagrid";
 
         > .td-custom-content {
             flex-grow: 1;
+            width: 100%;
         }
 
         > .empty-placeholder {