fix: Remove unnecessary GestureInterceptorMargin and TrueToVisible converter in the DrawerControl style to fix UWP Sample (#448)

* fix: Remove unused GestureInterceptorMargin TemplateBinding in the DrawerControl style to fix UWP Sample

* fix: Correctly use the already available MaterialTrueToVisible converter from Uno.Themes and removing the unecessary TrueToVisible converter

Author: agneszitte

samples/Uno.Toolkit.Samples/Uno.Toolkit.Samples.Shared/Converters.xaml

@@ -1,27 +1,25 @@
-<ResourceDictionary
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-	xmlns:converters="using:Uno.Toolkit.Samples.Converters">
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+					xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+					xmlns:converters="using:Uno.Toolkit.Samples.Converters">
+	
 	<converters:FromStringToValueConverter x:Key="IsNullOrEmptyToCollapsed"
 										   Check="IsNullOrEmpty"
 										   TrueValue="Collapsed"
 										   FalseValue="Visible" />
+	
 	<converters:FromStringToValueConverter x:Key="SelectedItemToVisible"
 										   Check="IsEqualToParameterValue"
 										   TrueValue="Visible"
 										   FalseValue="Collapsed" />
 
 	<converters:EnumDescriptionConverter x:Name="EnumToDescription" />
 
-	<converters:FromBoolToValueConverter x:Key="TrueToVisible"
-										 TrueValue="Visible"
-										 NullOrFalseValue="Collapsed" />
-
 	<converters:FromBoolToValueConverter x:Key="NotTrue"
 										 TrueValue="False"
 										 NullOrFalseValue="True" />
-    
+
 	<converters:FromBoolToValueConverter x:Key="IsFalse"
 										 FalseValue="True"
 										 NullOrTrueValue="False" />
+	
 </ResourceDictionary>

src/Uno.Toolkit.UI/Controls/DrawerControl/DrawerControl.xaml

@@ -54,8 +54,7 @@
 						<!-- see: https://github.com/unoplatform/nventive-private/issues/271 -->
 						<Border x:Name="GestureInterceptor"
 								Background="Transparent"
-								Visibility="{Binding IsGestureEnabled, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource TrueToVisible}}"
-								Margin="{TemplateBinding GestureInterceptorMargin}" />
+								Visibility="{Binding IsGestureEnabled, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource MaterialTrueToVisible}}" />
 					</Grid>
 				</ControlTemplate>
 			</Setter.Value>