Issue with double clicking tray icon. Added list management.

BodyshopUploader/Views/Login.xaml

@@ -7,8 +7,8 @@
         xmlns:vm="clr-namespace:BodyshopUploader.ViewModels"
         mc:Ignorable="d"
         Title="{x:Static p:Resources.Title_Login}"
-        Height="450"
-        Width="800"
+        Height="169.084"
+        Width="389.618"
         xmlns:p="clr-namespace:BodyshopUploader.Properties"
         xmlns:util="clr-namespace:BodyshopUploader.Utils"
         xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
@@ -35,6 +35,7 @@
                                          VerticalAlignment="Center" />
                 <TextBox materialDesign:HintAssist.Hint="{x:Static p:Resources.Username}"
                          Width="300"
+                         materialDesign:TextFieldAssist.HasClearButton="True"
                          Style="{StaticResource MaterialDesignFloatingHintTextBox}"
                          Text="{Binding UserName}" />
             </StackPanel>
@@ -45,10 +46,11 @@
                              KeyDown="PasswordBox_KeyDown"
                              PasswordChanged="PasswordBox_PasswordChanged"
                              Width="300"
+                             materialDesign:TextFieldAssist.HasClearButton="True"
                              Style="{StaticResource MaterialDesignFloatingHintPasswordBox}" />
             </StackPanel>
         </StackPanel>
-        
+
         <TextBlock Text="{Binding ErrorMsg}"
                    Visibility="{Binding ErrorMsg, Converter={StaticResource NullVisibilityConverter}}" />