Fixed a weird bug with checkpoints in the level editor + some tile fixes too

Scripts/Classes/Editor/LevelEditor.gd

@@ -351,6 +351,7 @@ func save_level() -> void:
 	$LevelSaver.write_file(level_file, file_name)
 	%SaveDialog.text = str("'") +  file_name + "'" + " Saved." 
 	%SaveAnimation.play("Show")
+	current_state = EditorState.TILE_MENU
 	level_saved.emit()
 
 func close_save_menu() -> void:

Scripts/Parts/LevelLoader.gd

@@ -15,6 +15,7 @@ func _ready() -> void:
 
 func load_level(level_idx := 0) -> void:
 	clear_level()
+	editor.sub_level_id = level_idx
 	sub_level_file = editor.level_file["Levels"][level_idx]
 	build_level()