Update OTP input control and tests for simplification

- Added `.vshistory/` to `.gitignore`.
- Cleaned up using directives in `SfOtpInput.cs`.
- Removed `_lineLength` variable and related comments.
- Modified line drawing calculations to use `_entryHeight`.
- Updated unit tests in `SfOtpInputUnitTests.cs` to reflect changes in parameters and assertions.

Author: LeoJHarris

.gitignore

@@ -2,3 +2,4 @@
 bin
 obj
 .vs/
+.vshistory/

maui/src/OtpInput/SfOtpInput.cs

@@ -1,11 +1,11 @@
-using Syncfusion.Maui.Toolkit.Graphics.Internals;
+using System.Globalization;
+using Syncfusion.Maui.Toolkit.Graphics.Internals;
 using Syncfusion.Maui.Toolkit.Helper;
 using Syncfusion.Maui.Toolkit.Internals;
 using Syncfusion.Maui.Toolkit.Themes;
 using Rect = Microsoft.Maui.Graphics.Rect;
 using ResourceDictionary = Microsoft.Maui.Controls.ResourceDictionary;
 using TextAlignment = Microsoft.Maui.TextAlignment;
-using System.Globalization;
 #if WINDOWS
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Input;
@@ -86,11 +86,6 @@ public class SfOtpInput : SfView, IKeyboardListener, IParentThemeElement
 		/// </summary>
 		float _spacing;
 
-		/// <summary>
-		/// Length of a decorative line element within the OTP control.
-		/// </summary>
-		float _lineLength = 40;
-
 #if WINDOWS
 		/// <summary>
 		/// Determines whether the input should be displayed in uppercase letters.
@@ -1682,9 +1677,8 @@ void UpdateDrawingParameters(int index)
 				? (float)(this.Width - _entryWidth - baseXPos)
 				: baseXPos;
 
-			// Update base line points
-			_startPoint = new PointF(xPos, _lineLength + _extraSpacing + yPadding);
-			_endPoint = new PointF(xPos + _entryWidth, _lineLength + _extraSpacing + yPadding);
+			_startPoint = new PointF(xPos, _entryHeight + _extraSpacing + yPadding);
+			_endPoint = new PointF(xPos + _entryWidth, _entryHeight + _extraSpacing + yPadding);
 
 			// Update outline rectangle
 			_outlineRectF = new RectF(xPos, _extraSpacing + yPadding, _entryWidth, _entryHeight);

maui/tests/Syncfusion.Maui.Toolkit.UnitTest/Editors/SfOtpInputUnitTests.cs

@@ -292,7 +292,7 @@ public void InputBackground(Color input, Color expected)
 			Assert.Equal(expected, actual);
 		}
 
-		
+
 
 		[Theory]
 		[InlineData(40)]
@@ -313,7 +313,7 @@ public void BoxWidth_UpdatesEntryDimensions(double newWidth)
 			}
 		}
 
-		
+
 
 		[Theory]
 		[InlineData(40)]
@@ -657,16 +657,15 @@ public void GetStrokeThickness(int index, float expectedStrokeThickness)
 
 
 		[Theory]
-		[InlineData(0, 30f, 40f, 5f, 3f, 50f, false, 300f)]
-		[InlineData(1, 35f, 45f, 10f, 5f, 60f, false, 300f)]
-		public void UpdateDrawingParameters(int index, float entryWidth, float entryHeight, float spacing, float extraSpacing, float lineLength, bool isRTL, float controlWidth)
+		[InlineData(0, 30f, 40f, 5f, 3f, false, 300f)]
+		[InlineData(1, 35f, 45f, 10f, 5f, false, 300f)]
+		public void UpdateDrawingParameters(int index, float entryWidth, float entryHeight, float spacing, float extraSpacing, bool isRTL, float controlWidth)
 		{
 			var otpInput = new SfOtpInput();
 			SetPrivateField(otpInput, "_entryWidth", entryWidth);
 			SetPrivateField(otpInput, "_entryHeight", entryHeight);
 			SetPrivateField(otpInput, "_spacing", spacing);
 			SetPrivateField(otpInput, "_extraSpacing", extraSpacing);
-			SetPrivateField(otpInput, "_lineLength", lineLength);
 			otpInput.WidthRequest = controlWidth;
 
 			var flowDirection = isRTL ? EffectiveFlowDirection.RightToLeft : 0;
@@ -689,11 +688,11 @@ public void UpdateDrawingParameters(int index, float entryWidth, float entryHeig
 
 			// Assert start point
 			Assert.Equal(xPos, startPoint.X);
-			Assert.Equal(lineLength + extraSpacing + yPadding, startPoint.Y);
+			Assert.Equal(entryHeight + extraSpacing + yPadding, startPoint.Y);
 
 			// Assert end point
 			Assert.Equal(xPos + entryWidth, endPoint.X);
-			Assert.Equal(lineLength + extraSpacing + yPadding, endPoint.Y);
+			Assert.Equal(entryHeight + extraSpacing + yPadding, endPoint.Y);
 
 			// Assert outline rectangle
 			Assert.Equal(xPos, outlineRectF.X);