docs: update changelog to include new style adjustments

Author: mcanouil

CHANGELOG.md

@@ -7,6 +7,10 @@
 - feat: add multiple window decoration styles for code blocks (`macos`, `windows`, `default`).
 - feat: add `skylighting-fix` option to enable or disable the Skylighting hot-fix for Typst output (enabled by default).
 
+### Style
+
+- style: adjust padding and height for title bar in code window.
+
 ### Refactoring
 
 - refactor: update Typst processing to return block sandwich.