skins2: fix winamp2.xml (.wsz file)

pledit id is used twice in this file (must be unique)

share/skins2/winamp2.xml

@@ -42,7 +42,7 @@
         <SubBitmap id="eq_small_close_down" x="11" y="47" width="9" height="9" />
         <SubBitmap id="eq_small_volume_up" x="1" y="30" width="3" height="7" />
     </Bitmap>
-    <Bitmap id="pledit" file="pledit.bmp" alphacolor="#FF0001">
+    <Bitmap id="pledit_bmp" file="pledit.bmp" alphacolor="#FF0001">
         <SubBitmap id="pl_upleft_focus" x="0" y="0" width="25" height="20" />
         <SubBitmap id="pl_title_focus" x="26" y="0" width="100" height="20" />
         <SubBitmap id="pl_up_focus" x="127" y="0" width="25" height="20" />