switch UI branch back to 'stackable'

fhennig · fhennig · commit 6743d0ec353c · 2024-08-29T09:52:36.000+02:00
diff --git a/ui b/ui
@@ -1 +1 @@
-Subproject commit 45d3e639cbb5825af00d8439bcf749b1d4037a0b
+Subproject commit c9a8e3153a9aa05d7338692a41c205890c64420c
