Refactor event handling and improve argument validation across indicators

- Updated event handler signatures to use TValueEventArgs for consistency in Mama, Mgdi, Pwma, Rma, Sma, Ssf, Super, T3, Tema, Trima, Usf, Vidya, Wma, and Atr classes.
- Enhanced argument validation by specifying parameter names in exceptions for clarity.
- Adjusted tests to align with new event handler signatures.
- Improved code readability and maintainability by using structured records and lambda expressions.

lib/trends/rma/Rma.cs

@@ -45,7 +45,7 @@ public sealed class Rma : AbstractBase
     public Rma(ITValuePublisher source, int period) : this(period)
     {
         ArgumentNullException.ThrowIfNull(source);
-        source.Pub += (item) => Update(item);
+        source.Pub += Handle;
     }
 
     /// <summary>
@@ -61,7 +61,7 @@ public sealed class Rma : AbstractBase
         {
             Last = new TValue(source.LastTime, Last.Value);
         }
-        source.Pub += (item) => Update(item);
+        source.Pub += Handle;
     }
 
     /// <summary>
@@ -80,6 +80,8 @@ public sealed class Rma : AbstractBase
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private void Handle(object? sender, TValueEventArgs e) => Update(e.Value, e.IsNew);
+
     public override TValue Update(TValue input, bool isNew = true)
     {
         TValue result = _ema.Update(input, isNew);