Fix incorrect namespaces

Tasks/UrlTester/App.xaml

@@ -1,7 +1,7 @@
-<Application x:Class="lel.App"
+<Application x:Class="UrlTester.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:local="clr-namespace:lel"
+             xmlns:local="clr-namespace:UrlTester"
              StartupUri="MainWindow.xaml">
     <Application.Resources>
          

Tasks/UrlTester/MainWindow.xaml

@@ -1,4 +1,4 @@
-<Window x:Class="lel.MainWindow"
+<Window x:Class="UrlTester.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

Tasks/UrlTester/MainWindow.xaml.cs

@@ -9,7 +9,7 @@ using System.Windows.Media.Imaging;
 using System.Windows.Navigation;
 using System.Windows.Shapes;
 
-namespace lel;
+namespace UrlTester;
 
 /// <summary>
 /// Interaction logic for MainWindow.xaml