Minor improvements & fixes to Shuttle Console UI (#31623)

* Fix grids and docks being culled from display prematurely

* Fix inconsistent disabling of "Undock" buttons

* Add a radar icon to indicate where the controlling console is

* Tidy up math

Remove lots of sketchy transforms-of-transforms, which should have been
as single matrix multiply. Assign proper names to matrices. Remove some
redundant calculations.

* Feedback

Content.Client/Shuttles/UI/NavScreen.xaml.cs

@@ -15,6 +15,7 @@ public sealed partial class NavScreen : BoxContainer
     [Dependency] private readonly IEntityManager _entManager = default!;
     private SharedTransformSystem _xformSystem;
 
+    private EntityUid? _consoleEntity; // Entity of controlling console
     private EntityUid? _shuttleEntity;
 
     public NavScreen()
@@ -35,6 +36,12 @@ public sealed partial class NavScreen : BoxContainer
         _shuttleEntity = shuttle;
     }
 
+    public void SetConsole(EntityUid? console)
+    {
+        _consoleEntity = console;
+        NavRadar.SetConsole(console);
+    }
+
     private void OnIFFTogglePressed(BaseButton.ButtonEventArgs args)
     {
         NavRadar.ShowIFF ^= true;