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.mse-style/style

@@ -4,9 +4,9 @@ short name: M15 style
 full name: After M15
 icon: card-sample.png
 installer group: magic/m15 style/normal cards
-position hint: 001
+position hint: 010
 
-version: 2018-02-09
+version: 2023-02-13
 depends on:
 	package: magic.mse-game
 	version: 2014-06-25
@@ -462,6 +462,13 @@ extra card field:
 	save value: false
 	editable: false
 	show statistics: false
+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
@@ -531,3 +538,12 @@ 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: list.png
+		z index: 4