Give songs meaningful english names

src/battle_bg.c

@@ -924,7 +924,7 @@ void InitLinkBattleVsScreen(u8 taskId)
             if (gTasks[taskId].data[5] != 0)
                 DrawLinkBattleVsScreenOutcomeText();
 
-            PlaySE(SE_W231);
+            PlaySE(SE_M_HARDEN);
             DestroyTask(taskId);
             gSprites[gBattleStruct->linkBattleVsSpriteId_V].invisible = FALSE;
             gSprites[gBattleStruct->linkBattleVsSpriteId_S].invisible = FALSE;