[gnome-music/wip/jfelder/baseview-must-die] playlistsview: Inherit from GtkBox

[Jean Felder <jfelder src gnome org>]

commit 0605edda725cd4cf74e6afa2e79a1589ea2c9e94
Author: Jean Felder <jfelder src gnome org>
Date:   Tue May 26 23:15:43 2020 +0200

    playlistsview: Inherit from GtkBox
    
    There is no point in using GtkStack.

 data/ui/PlaylistsView.ui          | 2 +-
 gnomemusic/views/playlistsview.py | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/data/ui/PlaylistsView.ui b/data/ui/PlaylistsView.ui
index f1714731..66afd2ca 100644
--- a/data/ui/PlaylistsView.ui
+++ b/data/ui/PlaylistsView.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <requires lib="gtk+" version="3.18"/>
-  <template class="PlaylistsView" parent="GtkStack">
+  <template class="PlaylistsView" parent="GtkBox">
     <property name="visible">True</property>
     <child>
       <object class="GtkBox" id="_main_container">
diff --git a/gnomemusic/views/playlistsview.py b/gnomemusic/views/playlistsview.py
index 58906280..5b8f0b1d 100644
--- a/gnomemusic/views/playlistsview.py
+++ b/gnomemusic/views/playlistsview.py
@@ -32,7 +32,7 @@ from gnomemusic.widgets.playlisttile import PlaylistTile
 
 
 @Gtk.Template(resource_path="/org/gnome/Music/ui/PlaylistsView.ui")
-class PlaylistsView(Gtk.Stack):
+class PlaylistsView(Gtk.Box):
     """Main view for playlists"""
 
     __gtype_name__ = "PlaylistsView"
@@ -48,7 +48,7 @@ class PlaylistsView(Gtk.Stack):
 
         :param GtkApplication application: The application object
         """
-        super().__init__(transition_type=Gtk.StackTransitionType.CROSSFADE)
+        super().__init__()
 
         self.props.name = "playlists"