fix: 扫描时界面会因为文件名不同而抖动的问题

src/GUI/Views/ScanProgressView.axaml

@@ -1,6 +1,7 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:vm="using:GUI.ViewModels"
+             xmlns:converters="using:GUI.Converters"
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              mc:Ignorable="d"
@@ -10,8 +11,13 @@
         <vm:ScanProgressViewModel/>
     </Design.DataContext>
 
+    <UserControl.Resources>
+        <converters:HalfDoubleConverter x:Key="HalfDouble"/>
+        <converters:MiddleTruncateConverter x:Key="MiddleTruncate"/>
+    </UserControl.Resources>
+
     <Border Padding="16" Background="{DynamicResource SystemBaseLowColorBrush}" CornerRadius="8"
-            MaxWidth="400">
+            Width="{Binding $parent[Window].Width, Converter={StaticResource HalfDouble}}">
         <StackPanel Spacing="8">
             <TextBlock Text="{Binding StatusText}" FontWeight="SemiBold" FontSize="13" TextWrapping="Wrap"/>
             <ProgressBar Minimum="0" Maximum="100" Value="{Binding Progress}" Height="8"/>
@@ -27,8 +33,8 @@
                 <TextBlock Text="{Binding SkippedFiles, StringFormat='跳过: {0}'}" FontSize="11"
                            Foreground="{DynamicResource SystemBaseMediumColorBrush}"/>
             </StackPanel>
-            <TextBlock Text="{Binding CurrentFile}" FontSize="11"
-                       TextTrimming="CharacterEllipsis" MaxWidth="368"/>
+            <TextBlock Text="{Binding CurrentFile, Converter={StaticResource MiddleTruncate}, ConverterParameter=60}"
+                       FontSize="11"/>
             <Button Content="关闭" Command="{Binding DismissCommand}"
                     IsVisible="{Binding HasError}" HorizontalAlignment="Right"/>
         </StackPanel>