sanitize song folder name

src/Data/Song/Song.cs

@@ -1,9 +1,6 @@
-using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Linq;
+using MercuryConverter.Utility;
-using Avalonia.Controls;
-using Avalonia.Media;
 using SaturnData.Notation.Core;
 using SaturnData.Notation.Serialization;
 using UAssetAPI.PropertyTypes.Objects;
@@ -29,7 +26,7 @@ public class Song
     public required float PreviewTime { get; set; }
     public required float PreviewLen { get; set; }
     public string SourceName => Consts.NUM_SOURCE[Source];
-    public string FolderName => $"{Artist} - {Name}";
+    public string FolderName => $"{Utils.RemoveInvalidFileNameChars(Artist)} - {Utils.RemoveInvalidFileNameChars(Name)}";
 
     /// <summary>
     /// Pairs of level and chart designer.

src/ExportOperation/Exporter.cs

@@ -56,7 +56,6 @@ public class Exporter
             {
                 var audioSourcePath = Database.AudioPaths[audioKey];
 
-                // Copy/convert audio -- TODO
                 switch (options.AudioFormat)
                 {
                     case AudioFormat.WAV:

src/Utility/Utils.cs

@@ -89,4 +89,9 @@ public static class Utils
             return (bool)_ffmpegAvailable!;
         }
     }
+
+    public static string RemoveInvalidFileNameChars(string filename)
+    {
+        return string.Concat(filename.Split(['/', '\\', '\"', '\'']));
+    }
 }