Re-draw tower background when dying in No Death Mode

Otherwise, if you died after entering a room with a horizontal or
vertical warp background (but not the all-sides warp background), the
warp background would be the first thing you see when going to the Game
Over screen, and would then start scrolling downwards with the proper
tower background coming in from the top.

This oversight seems to have always been in the game.

Was No Death Mode actually tested? Like, did anyone ever play through
the entire game without dying in the Warp Zone, or even AFTER completing
the Warp Zone, like, ever?

desktop_version/src/Script.cpp

@@ -2534,6 +2534,7 @@ void scriptclass::resetgametomenu()
 	graphics.flipmode = false;
 	obj.entities.clear();
 	graphics.fademode = 4;
+	map.tdrawback = true;
 	game.createmenu(Menu::gameover);
 }