Add eternal teleport crystal value offset

Fixes #11187

runelite-client/src/main/java/net/runelite/client/plugins/itemskeptondeath/FixedPriceItem.java

@@ -219,6 +219,8 @@ enum FixedPriceItem
 	VERACS_FLAIL_100(ItemID.VERACS_FLAIL_100, 10000, ItemID.VERACS_FLAIL_0),
 
 	AVERNIC_DEFENDER(ItemID.AVERNIC_DEFENDER, 4040000),
+	
+	ETERNAL_TELEPORT_CRYSTAL(ItemID.ETERNAL_TELEPORT_CRYSTAL, 78500),
 	;
 
 	private final int itemId;