Refactor death screen logic; update level resource scene path and add new levels to game manager

scripts/resources/level_resource.gd

@@ -2,4 +2,4 @@ class_name LevelResource
 extends Resource
 
 @export var level_name: String
-@export var scene_path: PackedScene
+@export var scene_path: String

scripts/ui/death_screen.gd

@@ -58,5 +58,5 @@ func on_timeout() -> void:
 
 	if gm.get_lives() == 0:
 		return
-		
+
 	get_tree().reload_current_scene()