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/Audio/Jukebox/JukeboxBoundUserInterface.cs

@@ -1,8 +1,7 @@
 using Content.Shared.Audio.Jukebox;
 using Robust.Client.Audio;
-using Robust.Client.Player;
+using Robust.Client.UserInterface;
 using Robust.Shared.Audio.Components;
-using Robust.Shared.Player;
 using Robust.Shared.Prototypes;
 
 namespace Content.Client.Audio.Jukebox;
@@ -23,9 +22,7 @@ public sealed class JukeboxBoundUserInterface : BoundUserInterface
     {
         base.Open();
 
-        _menu = new JukeboxMenu();
-        _menu.OnClose += Close;
-        _menu.OpenCentered();
+        _menu = this.CreateWindow<JukeboxMenu>();
 
         _menu.OnPlayPressed += args =>
         {
@@ -100,19 +97,5 @@ public sealed class JukeboxBoundUserInterface : BoundUserInterface
 
         SendMessage(new JukeboxSetTimeMessage(sentTime));
     }
-
-    protected override void Dispose(bool disposing)
-    {
-        base.Dispose(disposing);
-        if (!disposing)
-            return;
-
-        if (_menu == null)
-            return;
-
-        _menu.OnClose -= Close;
-        _menu.Dispose();
-        _menu = null;
-    }
 }