[libhandy] preferences-page: Increase the space between groups

[Alexander Mikhaylenko <alexm src gnome org>]

commit 2b67e133a31fd91e99e489d0a78bd8e3339072b0
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Dec 17 12:58:42 2020 +0100

    preferences-page: Increase the space between groups
    
    Fixes https://gitlab.gnome.org/GNOME/libhandy/-/issues/384

 src/hdy-preferences-page.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/hdy-preferences-page.ui b/src/hdy-preferences-page.ui
index 809dee7c..0ebb97b4 100644
--- a/src/hdy-preferences-page.ui
+++ b/src/hdy-preferences-page.ui
@@ -20,7 +20,7 @@
                 <child>
                   <object class="GtkBox" id="box">
                     <property name="orientation">vertical</property>
-                    <property name="spacing">18</property>
+                    <property name="spacing">30</property>
                     <property name="visible">True</property>
                   </object>
                 </child>