添加的登录界面，使用固定账号和密码测试登录逻辑成功

WorkStation.Client/App.xaml

@@ -0,0 +1,20 @@
+<prism:PrismApplication
+    x:Class="WorkStation.Client.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="clr-namespace:WorkStation.Client"
+    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
+    xmlns:prism="http://prismlibrary.com/">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <materialDesign:BundledTheme
+                    BaseTheme="Light"
+                    PrimaryColor="DeepPurple"
+                    SecondaryColor="Lime" />
+
+                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesign2.Defaults.xaml" />
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
+    </Application.Resources>
+</prism:PrismApplication>