[gtk: 67/72] gtk4-demo: Add missing margin-bottom

[Matthias Clasen <matthiasc src gnome org>]

commit 20bd8e56ee12f4b090a7d5d99c7630fb8818d440
Author: Timm Bäder <mail baedert org>
Date:   Sun Oct 11 20:11:39 2020 +0200

    gtk4-demo: Add missing margin-bottom
    
    This was setting margin-end twice

 demos/gtk-demo/shortcuts.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/demos/gtk-demo/shortcuts.ui b/demos/gtk-demo/shortcuts.ui
index 36eda142bd..1de5855966 100644
--- a/demos/gtk-demo/shortcuts.ui
+++ b/demos/gtk-demo/shortcuts.ui
@@ -8,7 +8,7 @@
         <property name="margin-start">50</property>
         <property name="margin-end">50</property>
         <property name="margin-top">50</property>
-        <property name="margin-end">50</property>
+        <property name="margin-bottom">50</property>
         <property name="spacing">10</property>
         <child>
           <object class="GtkButton">