The List and cleanup

Add The List icon to Old, OldAbu, New, New Planeswalkers, New Conspiracy, M15, M15 Planeswalkers, and Mainframes M15, Adventure, Planeswalker, and DFC
Cleaned up magic-mainframe-extras
Cleaned up some position hints

data/magic-m15-adventure.mse-style/style

@@ -6,7 +6,7 @@ icon: card-sample.png
 installer group: magic/m15 style/split cards
 position hint: 043
 
-version: 2015-12-20
+version: 2023-02-13
 depends on:
 	package: magic.mse-game
 	version: 2014-06-25
@@ -720,6 +720,13 @@ extra card field:
 	name: promo label
 	save value: true
 	description: The golden promo label.
+extra card field:
+	type: choice
+	name: list icon
+	choice: no icon
+	choice: the list
+	save value: true
+	editable: true
 extra card style:
 	card code:
 		left: 24
@@ -895,4 +902,12 @@ extra card style:
 			size: 7
 			color: white
 			weight: bold
-
+	list icon:
+		left: 0
+		top: 487
+		width: 29
+		height: 36
+		render style: image
+		choice images:
+			the list: /magic-mainframe-extras.mse-include/mfsfiles/list.png
+		z index: 4