Avoid unnecessary array allocations

src/Common/Undo/CompositeCommand.cs

@@ -9,7 +9,7 @@ namespace NanoByte.Common.Undo;
 /// <param name="commands">The commands to be contained inside the transaction.</param>
 public class CompositeCommand(params IUndoCommand[] commands) : SimpleCommand
 {
-    private readonly IUndoCommand[] _commands = commands.ToArray(); // Defensive copy
+    private readonly List<IUndoCommand> _commands = commands.ToList(); // Defensive copy
 
     // Defensive copy