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/Shuttles/BUI/IFFConsoleBoundUserInterface.cs

@@ -3,6 +3,7 @@ using Content.Shared.Shuttles.BUIStates;
 using Content.Shared.Shuttles.Events;
 using JetBrains.Annotations;
 using Robust.Client.GameObjects;
+using Robust.Client.UserInterface;
 
 namespace Content.Client.Shuttles.BUI;
 
@@ -20,8 +21,7 @@ public sealed class IFFConsoleBoundUserInterface : BoundUserInterface
     {
         base.Open();
 
-        _window = new IFFConsoleWindow();
-        _window.OnClose += Close;
+        _window = this.CreateWindow<IFFConsoleWindow>();
         _window.ShowIFF += SendIFFMessage;
         _window.ShowVessel += SendVesselMessage;
         _window.OpenCenteredLeft();