Shuttle map IFF tweaks (#25897)

- HideLabel just means it won't have its name / button drawn whereas Hide will block it completely.

Content.Shared/Shuttles/UI/MapObjects/GridMapObject.cs

@@ -3,5 +3,6 @@ namespace Content.Shared.Shuttles.UI.MapObjects;
 public record struct GridMapObject : IMapObject
 {
     public string Name { get; set; }
+    public bool HideButton { get; init; }
     public EntityUid Entity;
 }