Clearing hard coded headers to get localized context menus on the password box

Author: Keboo

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.PasswordBox.xaml

@@ -29,17 +29,17 @@
         <Setter Property="ContextMenu">
             <Setter.Value>
                 <ContextMenu>
-                    <MenuItem Command="Cut" Header="_Cut">
+                    <MenuItem Command="Cut">
                         <MenuItem.Icon>
                             <wpf:PackIcon Kind="ContentCut" />
                         </MenuItem.Icon>
                     </MenuItem>
-                    <MenuItem Command="Copy" Header="_Copy">
+                    <MenuItem Command="Copy">
                         <MenuItem.Icon>
                             <wpf:PackIcon Kind="ContentCopy" />
                         </MenuItem.Icon>
                     </MenuItem>
-                    <MenuItem Command="Paste" Header="_Paste">
+                    <MenuItem Command="Paste">
                         <MenuItem.Icon>
                             <wpf:PackIcon Kind="ContentPaste" />
                         </MenuItem.Icon>