[gnome-music/36-checkbox-albumwidget] albumwidget: Fix selection checkboxes style

[Jean Felder <jfelder src gnome org>]

commit 0e98509540cfb8f808c326b41f11cb7bdfc11308
Author: Jean Felder <jfelder src gnome org>
Date:   Fri Nov 13 16:43:33 2020 +0100

    albumwidget: Fix selection checkboxes style
    
    Due to a css change in Gtk 3.24.21, the selection checkboxes have
    become very big because a wrong style is applied. This is fixed by
    removing the "content-view" class to the AlbumWidget.
    This change is also valid for previous versions of Gtk.
    
    See:
    https://gitlab.gnome.org/GNOME/gtk/-/commit/7fd126e2afcebf673bc3d8a66d9f3ae59695b81f
    
    Closes: #414

 data/ui/AlbumWidget.ui | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/data/ui/AlbumWidget.ui b/data/ui/AlbumWidget.ui
index 75d649ac5..dc7f5e7cf 100644
--- a/data/ui/AlbumWidget.ui
+++ b/data/ui/AlbumWidget.ui
@@ -6,7 +6,6 @@
     <property name="visible">True</property>
     <style>
       <class name="view"/>
-      <class name="content-view"/>
     </style>
     <child>
       <object class="GtkBox">