docs: add 13.1.1 changelog entry

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

CHANGELOG.md

@@ -18,6 +18,11 @@ Types of changes:
 
 <!-- changelog-linker -->
 <!-- changelog-linker -->
+## 13.1.1 - 2026-03-06
+
+### Fixes
+- fix: include css assets in appstore package
+
 ## 13.1.0 - 2026-03-05
 
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