fixed saving & added first basic save creation menu

scripts/menus/main_menu.gd

@@ -1,6 +1,9 @@
 extends Control
 
-
+@onready var tab_container: TabContainer = $TabContainer
 
 func _on_start_button_pressed() -> void:
-	pass # Replace with function body.
+	tab_container.current_tab = 1
+
+func _on_profile_creator_exit() -> void:
+	tab_container.current_tab = 0