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/Forensics/ForensicScannerBoundUserInterface.cs

@@ -1,6 +1,7 @@
 using Robust.Client.GameObjects;
 using Robust.Shared.Timing;
 using Content.Shared.Forensics;
+using Robust.Client.UserInterface;
 
 namespace Content.Client.Forensics
 {
@@ -21,11 +22,9 @@ namespace Content.Client.Forensics
         protected override void Open()
         {
             base.Open();
-            _window = new ForensicScannerMenu();
-            _window.OnClose += Close;
+            _window = this.CreateWindow<ForensicScannerMenu>();
             _window.Print.OnPressed += _ => Print();
             _window.Clear.OnPressed += _ => Clear();
-            _window.OpenCentered();
         }
 
         private void Print()
@@ -62,6 +61,7 @@ namespace Content.Client.Forensics
 
             _printCooldown = cast.PrintCooldown;
 
+            // TODO: Fix this
             if (cast.PrintReadyAt > _gameTiming.CurTime)
                 Timer.Spawn(cast.PrintReadyAt - _gameTiming.CurTime, () =>
                 {
@@ -71,14 +71,5 @@ namespace Content.Client.Forensics
 
             _window.UpdateState(cast);
         }
-
-        protected override void Dispose(bool disposing)
-        {
-            base.Dispose(disposing);
-            if (!disposing)
-                return;
-
-            _window?.Dispose();
-        }
     }
 }