[gnome-control-center] info: Add a scrolled window and a column to the overview

[Adrien Plazas <aplazas src gnome org>]

commit d4daa8d2c7e118e1fc604d64cad9ee7bd236a9f8
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Tue Jan 29 16:35:23 2019 +0100

    info: Add a scrolled window and a column to the overview
    
    This will allow the panel to reach smaller sizes.
    
    This deliberately doesn't adapt the indentation of the contained widget
    to help this commit to be more readable and easier to review, it will be
    adapted in the next commit.

 panels/info/cc-info-overview-panel.ui | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)
---
diff --git a/panels/info/cc-info-overview-panel.ui b/panels/info/cc-info-overview-panel.ui
index 219a83c4c..738b4742e 100644
--- a/panels/info/cc-info-overview-panel.ui
+++ b/panels/info/cc-info-overview-panel.ui
@@ -4,14 +4,26 @@
   <template class="CcInfoOverviewPanel" parent="CcPanel">
     <property name="visible">True</property>
     <property name="can-focus">False</property>
-    <property name="valign">center</property>
-    <property name="halign">center</property>
-    <property name="expand">True</property>
-    <property name="margin">24</property>
+    <child>
+      <object class="GtkScrolledWindow">
+        <property name="visible">True</property>
+        <property name="can-focus">False</property>
+        <property name="hscrollbar-policy">never</property>
+        <child>
+          <object class="HdyColumn">
+            <property name="visible">True</property>
+            <property name="maximum_width">600</property>
+            <property name="linear_growth_width">400</property>
+            <property name="margin_top">32</property>
+            <property name="margin_bottom">32</property>
+            <property name="margin_start">12</property>
+            <property name="margin_end">12</property>
     <child>
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="valign">center</property>
+        <property name="halign">center</property>
         <property name="spacing">18</property>
         <property name="orientation">vertical</property>
         <child>
@@ -332,6 +344,10 @@
           </packing>
         </child>
       </object>
+    </child>
+          </object>
+        </child>
+      </object>
     </child>
   </template>
 </interface>