[gnome-music/wip/jfelder/core-playlists-view] playlistcontrols: Change menu button icon

[Jean Felder <jfelder src gnome org>]

commit 995af707b71036c4f4ec347c617300efae1f1293
Author: Jean Felder <jfelder src gnome org>
Date:   Wed Jul 10 01:50:06 2019 +0200

    playlistcontrols: Change menu button icon
    
    Use the new style.
    https://gitlab.gnome.org/Teams/Design/app-mockups/blob/master/music/music-list-style.png

 data/ui/PlaylistControls.ui | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/data/ui/PlaylistControls.ui b/data/ui/PlaylistControls.ui
index 64456fdd..4f4c0e3d 100644
--- a/data/ui/PlaylistControls.ui
+++ b/data/ui/PlaylistControls.ui
@@ -15,6 +15,13 @@
       <attribute name="action">win.playlist_rename</attribute>
     </item>
   </menu>
+  <object class="GtkImage" id="_view_more_image">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <property name="margin_top">1</property>
+    <property name="icon_name">view-more-symbolic</property>
+    <property name="icon_size">1</property>
+  </object>
   <template class="PlaylistControls" parent="GtkGrid">
     <property name="visible">True</property>
     <property name="can_focus">False</property>
@@ -115,6 +122,7 @@
         <property name="menu-model">playlistMenu</property>
         <property name="direction">none</property>
         <property name="use_popover">True</property>
+        <property name="image">_view_more_image</property>
         <style>
           <class name="image-button"/>
           <class name="circular"/>