feat: Switching sorting in Freeplay, if your currently selected song is in the next section, we move there immediately for easier navigation

source/funkin/ui/freeplay/FreeplayState.hx

@@ -497,6 +497,8 @@ class FreeplayState extends MusicBeatSubState
 
     // Reminder, this is a callback function being set, rather than these being called here in create()
     letterSort.changeSelectionCallback = (str) -> {
+      var curSong:Null<FreeplaySongData> = grpCapsules.members[curSelected]?.freeplayData;
+
       switch (str)
       {
         case 'fav':
@@ -509,9 +511,14 @@ class FreeplayState extends MusicBeatSubState
           generateSongList({filterType: REGEXP, filterData: str}, true);
       }
 
-      // We want to land on the first song of the group, rather than random song when changing letter sorts
+      // If the current song is still in the list (aka not null?), we'll land on it
+      // Otherwise we want to land on the first song of the group, rather than random song when changing letter sorts
       // that is, only if there's more than one song in the group!
-      if (grpCapsules.members.length > 0)
+      if (curSong != null && currentFilteredSongs.length > 1)
+      {
+        changeSelection();
+      }
+      else if (grpCapsules.members.length > 0)
       {
         FunkinSound.playOnce(Paths.sound('scrollMenu'), 0.4);
         curSelected = 1;