[gnome-calendar] quick-add-popover: add `calendars-list` styleclass

[Lapo Calamandrei <lapo src gnome org>]

commit 9e7abab8b25e491b1a046aa3ba5ab542f5e36d01
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Fri Jul 8 20:05:42 2016 +0200

    quick-add-popover: add `calendars-list` styleclass
    
    add `calendars-lists` to `calendars_listbox`.

 data/ui/quick-add-popover.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/quick-add-popover.ui b/data/ui/quick-add-popover.ui
index 8684bba..41acc23 100644
--- a/data/ui/quick-add-popover.ui
+++ b/data/ui/quick-add-popover.ui
@@ -219,6 +219,9 @@
                         <property name="can_focus">False</property>
                         <property name="selection_mode">none</property>
                         <signal name="row-activated" handler="select_row" object="GcalQuickAddPopover" 
swapped="yes" />
+                        <style>
+                          <class name="calendars-list"/>
+                        </style>
                       </object>
                     </child>
                   </object>