docs: move elkowar#1132's changelog entry

CHANGELOG.md

@@ -9,6 +9,7 @@ All notable changes to eww will be listed here, starting at changes since versio
 - Fix and refactor nix flake (By: w-lfchen)
 - Fix remove items from systray (By: vnva)
 - Fix the gtk `stack` widget (By: ovalkonia)
+- Fix the gtk `expander` widget (By: ovalkonia)
 
 ### Features
 - Update rust toolchain to 1.80.1 (By: w-lfchen)
@@ -24,7 +25,6 @@ All notable changes to eww will be listed here, starting at changes since versio
 - Fix nix flake
 - Fix `jq` (By: w-lfchen)
 - Labels now use gtk's truncation system (By: Rayzeq).
-- Fix the gtk `expander` widget (By: ovalkonia)
 
 ### Features
 - Add `systray` widget (By: ralismark)