Battle Anim Debug Check (#4930)

* battle anim scripts check uncleared Task_UpdateMonBg after anims

---------

Co-authored-by: ghoulslash <pokevoyager0@gmail.com>

src/battle_anim.c

@@ -793,6 +793,10 @@ static void Cmd_end(void)
 
     if (!continuousAnim) // May have been used for debug?
     {
+        // Debugging - ensure no hanging mon bg tasks
+        if (FuncIsActiveTask(Task_UpdateMonBg))
+            DebugPrintf("Move %d animation still has Task_UpdateMonBg active at the end!", gAnimMoveIndex);
+        
         m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 256);
         if (!IsContest())
         {