Improve the size of the player tree view.

data/gui/default/window/lobby_main.cfg

@@ -295,7 +295,6 @@
 
 #define PLAYERLISTBOX
 [grid]
-	vertical_grow = "true"
 	[row]
 		[column]
 			[grid]
@@ -344,8 +343,10 @@
 	[/row]
 
 	[row]
+		grow_factor = 1
 
 		[column]
+			vertical_grow = "true"
 
 			[tree_view]
 				id = "player_tree"
@@ -455,16 +456,6 @@
 
 	[/row]
 
-	[row]
-		# This last row spacer is there to make sure the extra height goes to
-		# the spacer. The spacer grows so it's easy to add a debug_border_mode
-		grow_factor = 1
-		[column]
-			vertical_grow = "true"
-		[spacer]
-		[/spacer]
-		[/column]
-	[/row]
 [/grid]
 #enddef