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/Research/UI/DiskConsoleBoundUserInterface.cs

@@ -1,5 +1,7 @@
 using Content.Shared.Research;
 using Content.Shared.Research.Components;
+using Robust.Client.GameObjects;
+using Robust.Client.UserInterface;
 
 namespace Content.Client.Research.UI
 {
@@ -16,10 +18,7 @@ namespace Content.Client.Research.UI
         {
             base.Open();
 
-            _menu = new();
-
-            _menu.OnClose += Close;
-            _menu.OpenCentered();
+            _menu = this.CreateWindow<DiskConsoleMenu>();
 
             _menu.OnServerButtonPressed += () =>
             {
@@ -31,14 +30,6 @@ namespace Content.Client.Research.UI
             };
         }
 
-        protected override void Dispose(bool disposing)
-        {
-            base.Dispose(disposing);
-            if (!disposing)
-                return;
-            _menu?.Close();
-        }
-
         protected override void UpdateState(BoundUserInterfaceState state)
         {
             base.UpdateState(state);