feat: Add ShowNone method to SwapStyleBuilder

A new method, ShowNone, has been added to the SwapStyleBuilder class. This method turns off scrolling after a swap and allows for chaining with other methods in the class. Corresponding unit test has also been added to ensure that it returns the correct value.

src/Htmxor/Http/SwapStyleBuilder.cs

@@ -129,6 +129,17 @@ public SwapStyleBuilder ShowWindow(ScrollDirection direction)
         return this;
     }
 
+    /// <summary>
+    /// Turns off scrolling after swap
+    /// </summary>
+    /// <returns>The SwapStyleBuilder instance for chaining.</returns>
+    public SwapStyleBuilder ShowNone()
+    {
+        AddModifier("show", "none");
+
+        return this;
+    }
+
     /// <summary>
     /// Builds the swap style command string with all specified modifiers.
     /// </summary>

test/Htmxor.Tests/Http/SwapStyleBuilderTests.cs

@@ -184,4 +184,17 @@ public void SwapStyleBuilder_NullSwapStyle_ReturnsNullStyle()
         // Assert
         Assert.Null(style);
     }
+
+    [Fact]
+    public void SwapStyleBuilder_ShowNone_ReturnsCorrectValue()
+    {
+        // Arrange
+        var builder = new SwapStyleBuilder(SwapStyle.InnerHTML);
+
+        // Act
+        var (_, modifiers) = builder.ShowNone().Build();
+
+        // Assert
+        Assert.Equal("show:none", modifiers);
+    }
 }