cleanup: Fixes bugs and cleans up code (#660)

Projects/UOContent/Commands/Dupe.cs

@@ -54,6 +54,7 @@ namespace Server.Commands
                 }
                 catch
                 {
+                    // ignored
                 }
             }
         }

Projects/UOContent/Commands/Generic/Implementors/ObjectConditional.cs

@@ -21,9 +21,9 @@ namespace Server.Commands.Generic
 
         public Type Type { get; }
 
-        public bool IsItem => Type == null || Type.IsAssignableTo(OfItem);
+        public bool IsItem => Type?.IsAssignableTo(OfItem) != false;
 
-        public bool IsMobile => Type == null || Type.IsAssignableTo(OfMobile);
+        public bool IsMobile => Type?.IsAssignableTo(OfMobile) != false;
 
         public bool HasCompiled => m_Conditionals != null;
 

Projects/UOContent/Commands/Logging.cs

@@ -1,4 +1,3 @@
-using System;
 using System.IO;
 using System.Text;
 using Server.Accounting;

Projects/UOContent/Commands/Object Creation/CAGObject.cs

@@ -34,7 +34,7 @@ namespace Server.Commands
 
         public CAGCategory Parent { get; set; }
 
-        public override string Title => Type == null ? "bad type" : Type.Name;
+        public override string Title => Type?.Name ?? "bad type";
 
         public override void OnClick(Mobile from, int page)
         {

Projects/UOContent/Commands/Object Creation/DecorateMag.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections;
 using System.Collections.Generic;
 using System.IO;
 using Server.Engines.Quests.Haven;
@@ -73,7 +72,7 @@ namespace Server.Commands
         private static readonly Type typeofCannon = typeof(Cannon);
         private static readonly Type typeofSerpentPillar = typeof(SerpentPillar);
 
-        private static readonly Queue m_DeleteQueue = new();
+        private static readonly Queue<Item> m_DeleteQueue = new();
 
         private static readonly string[] m_EmptyParams = Array.Empty<string>();
         private List<DecorationEntryMag> m_Entries;
@@ -1143,7 +1142,7 @@ namespace Server.Commands
 
             while (m_DeleteQueue.Count > 0)
             {
-                ((Item)m_DeleteQueue.Dequeue())?.Delete();
+                m_DeleteQueue.Dequeue()?.Delete();
             }
 
             return res;

Projects/UOContent/Commands/ShardTime.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Globalization;
+using System.Globalization;
 
 namespace Server.Commands
 {