General storage fixes (#34845)

* Fix storage stars

* Fix some more storage bugs

- Fix positions not saving.
- Fix the 1-tick delay between parent and child storage UIs opening / closing.
- Fix BackButton being visible sometimes when it shouldn't be.

* milon is a furry

Content.Client/PDA/PdaBoundUserInterface.cs

@@ -30,8 +30,7 @@ namespace Content.Client.PDA
 
         private void CreateMenu()
         {
-            _menu = this.CreateWindow<PdaMenu>();
-            _menu.OpenCenteredLeft();
+            _menu = this.CreateWindowCenteredLeft<PdaMenu>();
 
             _menu.FlashLightToggleButton.OnToggled += _ =>
             {