pause bg music only in OnShowFinish,

do not play bg music in record screen

Vocaluxe/Menu/CMenu.cs

@@ -856,7 +856,6 @@ namespace Vocaluxe.Menu
         public virtual void OnShow()
         {
             ResumeBG();
-            CBackgroundMusic.Play();
         }
 
         public virtual void OnShowFinish()

Vocaluxe/Screens/CScreenOptionsRecord.cs

@@ -353,6 +353,12 @@ namespace Vocaluxe.Screens
             _DelaySound = -1;
         }
 
+        public override void OnShowFinish()
+        {
+            base.OnShowFinish();
+            CBackgroundMusic.Pause();
+        }
+
         public override bool Draw()
         {
             DrawBG();