Add Serialization method when a music is add

Sources/Linaris/LocalFilesPage.xaml.cs

@@ -107,6 +107,7 @@ public partial class LocalFilesPage : ContentPage
                 }
             }
         }
+        (Application.Current as App).Manager.SaveSerialization();
     }
 
     async void AddToPlaylist(object sender, EventArgs e)
@@ -123,6 +124,7 @@ public partial class LocalFilesPage : ContentPage
                         return;
                     }
                     playlist.AddTitle(customTitle);
+                    (Application.Current as App).Manager.SaveSerialization();
                     ResetAll(sender, e);
                 }
             }
@@ -133,7 +135,7 @@ public partial class LocalFilesPage : ContentPage
     {
         if (sender is Entry entry)
         {
-            Playlist playlist = new Playlist(entry.Text, "", "none.png");
+            Playlist playlist = new(entry.Text, "", "none.png");
             if (!IsInPlaylists(playlist))
             {
                 (Application.Current as App).Manager.AddPlaylist(playlist);
@@ -160,6 +162,7 @@ public partial class LocalFilesPage : ContentPage
                 customTitles.Remove(titleToRemove);
                 File.Delete(titleToRemove.Path);
                 (Application.Current as App).Manager.RemoveCustomTitleFromPlaylists(titleToRemove);
+                (Application.Current as App).Manager.SaveSerialization();
             }
         }
     }