Cleanup & Fixes for .NET 5 (#309)

- [X] Fixes several bugs
- [X] Updates more ordinal issues
- [X] Cleans up the code a bit
- [X] Turns classes static that should have been
- [X] Changes TcpServer.Instances to a HashSet

Bumps release version

Projects/UOContent/Engines/Help/PageQueue.cs

@@ -114,7 +114,7 @@ namespace Server.Engines.Help
         }
     }
 
-    public class PageQueue
+    public static class PageQueue
     {
         private static readonly Dictionary<Mobile, PageEntry> m_KeyedByHandler = new Dictionary<Mobile, PageEntry>();
         private static readonly Dictionary<Mobile, PageEntry> m_KeyedBySender = new Dictionary<Mobile, PageEntry>();
@@ -172,8 +172,7 @@ namespace Server.Engines.Help
             }
         }
 
-        [Usage("Pages")]
-        [Description("Opens the page queue menu.")]
+        [Usage("Pages"), Description("Opens the page queue menu.")]
         private static void Pages_OnCommand(CommandEventArgs e)
         {
             if (m_KeyedByHandler.TryGetValue(e.Mobile, out var entry))

Projects/UOContent/Engines/Help/PageQueueGump.cs

@@ -188,7 +188,7 @@ namespace Server.Engines.Help
 
                 while ((line = ip.ReadLine()?.Trim()) != null)
                 {
-                    if (line.Length == 0 || line.StartsWith("#"))
+                    if (line.Length == 0 || line.StartsWith("#", StringComparison.Ordinal))
                     {
                         continue;
                     }

Projects/UOContent/Engines/Help/SpeechLog.cs

@@ -34,8 +34,7 @@ namespace Server.Engines.Help
             CommandSystem.Register("SpeechLog", AccessLevel.Counselor, SpeechLog_OnCommand);
         }
 
-        [Usage("SpeechLog")]
-        [Description("Opens the speech log of a given target.")]
+        [Usage("SpeechLog"), Description("Opens the speech log of a given target.")]
         private static void SpeechLog_OnCommand(CommandEventArgs e)
         {
             var from = e.Mobile;