add new preview

Aborea_new/sheet.json

@@ -3,7 +3,7 @@
 	"css": "aborea.css",
 	"authors": "Daniel (Tealk) Buck - Herzog von Meranien",
 	"roll20userid": "207181",
-	"preview": "aborea.png",
+	"preview": "aborea.jpg",
     "instructions": "## General\r Check the [official website](https://aborea.de/) to get the latest rulebooks and helpful tools. \r\r## Handling\r * With the button \"Fuer alle wuerfeln\" or \"Fuer GM wuerfeln\" it is possible to switch the visible no for all dice that are rolled over the character sheet.\r * The button by profession allows you to deactivate the drop down menu and enter your own professions.\r * The automatic money calculation and the life calculation can be switched off and on with the corresponding buttons.\r * With the button at Inventory you can hide the description box. \r\r## Contact\r If you find bugs or have suggestions, please use the [Github issue tracker](https://github.com/Tealk/roll20-character-sheets/issues) for this sheet. \r\r## Contribute\r If you want to support me, here is my [Roll20 wish list](https://app.roll20.net/wishlist/53252).",
 	"useroptions": [
 		{