[gnome-software] Make the mode switcher centered again

[Kalev Lember <klember src gnome org>]

commit fb2a1caa00f872cb40a51769bbebc59aabce7654
Author: Kalev Lember <klember redhat com>
Date:   Tue Oct 9 12:13:59 2018 +0200

    Make the mode switcher centered again
    
    This regressed with the recent .ui GtkBox packing changes.
    
    Fixes: https://gitlab.gnome.org/GNOME/gnome-software/issues/492

 src/gnome-software.ui | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/gnome-software.ui b/src/gnome-software.ui
index 42272c2c..1e730fc3 100644
--- a/src/gnome-software.ui
+++ b/src/gnome-software.ui
@@ -83,6 +83,7 @@
             <child type="title">
               <object class="GtkBox" id="title_box">
                 <property name="visible">True</property>
+                <property name="hexpand">False</property>
                 <child>
                   <object class="GtkButtonBox" id="buttonbox_main">
                     <property name="visible">True</property>