Fixed duplicate xaml

Author: Yair Aichenbaum

Files/SettingsPages/FilesAndFolders.xaml

@@ -5,7 +5,6 @@
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:local="using:Files"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-    xmlns:local="using:Files"
     Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
     mc:Ignorable="d">
 
@@ -77,7 +76,6 @@
                         x:Name="FileExtensionsToggle"
                         Grid.Column="1"
                         Width="40"
-                        x:Name="FileExtensionsToggle"
                         HorizontalAlignment="Right"
                         IsOn="{x:Bind local:App.AppSettings.ShowFileExtensions, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                         OffContent=""