[gnome-games] ui: Use GtkPopover for hamburger menu

[Adrien Plazas <aplazas src gnome org>]

commit b4c7ed7963f48d33b16e2ab6436fda66605ddfa3
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Sun Jul 29 17:18:08 2018 +0500

    ui: Use GtkPopover for hamburger menu

 data/ui/collection-header-bar.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/ui/collection-header-bar.ui b/data/ui/collection-header-bar.ui
index fb158bdb..9789c580 100644
--- a/data/ui/collection-header-bar.ui
+++ b/data/ui/collection-header-bar.ui
@@ -83,7 +83,7 @@
       </packing>
     </child>
   </template>
-  <object class="GtkPopoverMenu" id="menu_popover">
+  <object class="GtkPopover" id="menu_popover">
     <property name="visible">True</property>
     <child>
       <object class="GtkBox">