[gnome-usage] performance-view: Use a HdyColumn

[Adrien Plazas <aplazas src gnome org>]

commit 3928dbad0c1149faf06770fa55a510faf1bea8e2
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Tue Sep 10 15:48:43 2019 +0200

    performance-view: Use a HdyColumn
    
    This helps making the view adaptive.

 data/ui/performance-view.ui | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)
---
diff --git a/data/ui/performance-view.ui b/data/ui/performance-view.ui
index 4276bde..dfc0741 100644
--- a/data/ui/performance-view.ui
+++ b/data/ui/performance-view.ui
@@ -48,10 +48,18 @@
                 <property name="visible">True</property>
                 <property name="vexpand">True</property>
                 <child>
-                  <object class="GtkBox" id="performance_content">
+                  <object class="HdyClamp">
                     <property name="visible">True</property>
-                    <property name="orientation">vertical</property>
-                    <property name="spacing">30</property>
+                    <property name="margin-start">12</property>
+                    <property name="margin-end">12</property>
+                    <property name="expand">True</property>
+                    <child>
+                      <object class="GtkBox" id="performance_content">
+                        <property name="visible">True</property>
+                        <property name="orientation">vertical</property>
+                        <property name="spacing">30</property>
+                      </object>
+                    </child>
                   </object>
                 </child>
               </object>