[gnome-music] ui/playlistdialog: Fix styling

[Jean Felder <jfelder src gnome org>]

commit cc333f80a1f38c384af90c24ff31f42a9f47fe31
Author: Ezike Ebuka <yerimyah1 gmail com>
Date:   Thu Jun 2 14:06:51 2022 +0100

    ui/playlistdialog: Fix styling
    
    Issues
    Removes the unnecessary close button
    Fix the bottom margin by hiding the action_area
    
    Closes: #499

 data/ui/PlaylistDialog.ui | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/data/ui/PlaylistDialog.ui b/data/ui/PlaylistDialog.ui
index f039604dd..51e58c878 100644
--- a/data/ui/PlaylistDialog.ui
+++ b/data/ui/PlaylistDialog.ui
@@ -190,11 +190,13 @@
     <child internal-child="action_area">
       <object class="GtkBox">
         <property name="focusable">False</property>
+        <property name="visible">False</property>
       </object>
     </child>
   </template>
   <object class="GtkHeaderBar" id="_title_bar">
     <property name="focusable">False</property>
+    <property name="show_title_buttons">False</property>
     <property name="title-widget">
       <object class="GtkLabel">
         <property name="label" translatable="yes">Add to Playlist</property>