Remove some BUI boilerplate (#28399)

* Remove some BUI boilerplate

- The disposals overrides got removed due to the helper method handling it.
- Replace window creation with CreateWindow helper.
- Fixed some stinky code which would cause exceptions.

* More

* moar

* weh

* done

* More BUIs

* More updates

* weh

* moar

* look who it is

* weh

* merge

* weh

* fixes

Content.Client/Nuke/NukeBoundUserInterface.cs

@@ -2,6 +2,7 @@ using Content.Shared.Containers.ItemSlots;
 using Content.Shared.Nuke;
 using JetBrains.Annotations;
 using Robust.Client.GameObjects;
+using Robust.Client.UserInterface;
 
 namespace Content.Client.Nuke
 {
@@ -11,15 +12,13 @@ namespace Content.Client.Nuke
         [ViewVariables]
         private NukeMenu? _menu;
 
-        public NukeBoundUserInterface([NotNull] EntityUid owner, [NotNull] Enum uiKey) : base(owner, uiKey)
+        public NukeBoundUserInterface(EntityUid owner, Enum uiKey) : base(owner, uiKey)
         {
         }
 
         protected override void Open()
         {
-            _menu = new NukeMenu();
-            _menu.OpenCentered();
-            _menu.OnClose += Close;
+            _menu = this.CreateWindow<NukeMenu>();
 
             _menu.OnKeypadButtonPressed += i =>
             {
@@ -62,15 +61,5 @@ namespace Content.Client.Nuke
                     break;
             }
         }
-
-        protected override void Dispose(bool disposing)
-        {
-            base.Dispose(disposing);
-            if (!disposing)
-                return;
-
-            _menu?.Close();
-            _menu?.Dispose();
-        }
     }
 }