Fixed compiling for html5 targets by excluding the FNFC loading stuff

source/funkin/InitState.hx

@@ -402,7 +402,11 @@ class InitState extends FlxState
     }
     else if (params.song.shouldLoadSong && params.song.songPath != null)
     {
+      #if sys
       FlxG.switchState(() -> new ChartPlaytestMenu(params.song.songPath));
+      #else
+      FlxG.switchState(() -> new TitleState());
+      #end
     }
     else
     {

source/funkin/ui/debug/playtest/ChartPlaytestMenu.hx

@@ -1,5 +1,6 @@
 package funkin.ui.debug.playtest;
 
+#if sys
 import flixel.text.FlxText;
 import flixel.util.FlxColor;
 import flixel.tweens.FlxTween;
@@ -97,3 +98,4 @@ class ChartPlaytestMenu extends MusicBeatState
     #end
   }
 }
+#end

source/funkin/ui/debug/playtest/ChartPlaytestMenuButton.hx

@@ -1,5 +1,6 @@
 package funkin.ui.debug.playtest;
 
+#if sys
 import flixel.group.FlxSpriteGroup;
 import flixel.text.FlxText;
 import flixel.util.FlxColor;
@@ -104,3 +105,4 @@ class ChartPlaytestMenuButtonListToggle extends ChartPlaytestMenuButtonBase
     return '$title: $selectedItem';
   }
 }
+#end