Add stats button to end game dialog

Also adds the statistics window to TD.  There is no button for it in
observer mode, though, but it is available from the end game dialog.

Fixes #6312.

mods/d2k/chrome/ingame-leavemap.yaml

@@ -38,16 +38,15 @@ Container@LEAVE_RESTART_WIDGET:
 							Height: 65
 							Text: Press 'Leave' to return to the main menu.
 							Align: Center
-						Button@RESTART_BUTTON:
+						Button@STATS_BUTTON:
 							X: 20
 							Y: PARENT_BOTTOM - 45
 							Width: 140
 							Height: 25
 							Font: Bold
-							Text: Restart
-							Visible: false
+							Text: Statistics
 						Button@LEAVE_BUTTON:
-							X: (PARENT_RIGHT - WIDTH) / 2
+							X: PARENT_RIGHT - WIDTH - 20
 							Y: PARENT_BOTTOM - 45
 							Width: 140
 							Height: 25
@@ -72,14 +71,13 @@ Container@LEAVE_RESTART_WIDGET:
 							Font: Bold
 							Align: Center
 							Text: The game has ended
-						Button@RESTART_BUTTON:
+						Button@STATS_BUTTON:
 							X: PARENT_RIGHT - 2 * (WIDTH + 20)
 							Y: PARENT_BOTTOM - 45
 							Width: 120
 							Height: 25
 							Font: Bold
-							Text: Restart
-							Visible: false
+							Text: Statistics
 						Button@LEAVE_BUTTON:
 							X: PARENT_RIGHT - WIDTH - 20
 							Y: PARENT_BOTTOM - 45