LicenseDetailsDialog: header wraps long subtitles + auto-resize

The « Update license expired » header was truncating the « Expired on X.
You can still download versions… » subtitle: no TextWrapping on the
TextBlock and the inner StackPanel had no horizontal width constraint.

Switched the icon-and-text layout from a horizontal StackPanel to a
2-column Grid (Auto + *) so the text column expands to the Border width.
TextWrapping="Wrap" on title + subtitle, icon now top-aligned to follow
the wrap. Window switched to SizeToContent="Height" with MinHeight=480
so it grows when the localized message wraps to 3+ lines.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/PSLauncher.App/Views/LicenseDetailsDialog.xaml

@@ -4,7 +4,9 @@
         xmlns:loc="clr-namespace:PSLauncher.Core.Localization;assembly=PSLauncher.Core"
         Title="License"
         Icon="pack://application:,,,/Resources/favicon.ico"
-        Width="500" Height="480"
+        Width="540" Height="540"
+        SizeToContent="Height"
+        MinHeight="480"
         ResizeMode="NoResize"
         WindowStartupLocation="CenterOwner"
         Background="{StaticResource Brush.Bg.Window}">
@@ -16,24 +18,34 @@
             <RowDefinition Height="Auto" />
         </Grid.RowDefinitions>
 
-        <!-- Header avec badge couleur -->
+        <!-- Header avec badge couleur. On utilise un Grid (Auto + *) pour que la
+             colonne texte prenne tout l'espace disponible et que le sous-titre
+             puisse wrapper sur plusieurs lignes (les messages "License expirée
+             le X. Vous pouvez encore..." font facilement 2-3 lignes). -->
         <Border Grid.Row="0" CornerRadius="8" Padding="20,16"
                 BorderThickness="2"
                 x:Name="HeaderBorder">
-            <StackPanel Orientation="Horizontal">
-                <TextBlock x:Name="StatusIconText"
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="Auto" />
+                    <ColumnDefinition Width="*" />
+                </Grid.ColumnDefinitions>
+                <TextBlock Grid.Column="0"
+                           x:Name="StatusIconText"
                            FontSize="32" FontWeight="Bold"
-                           VerticalAlignment="Center" Margin="0,0,16,0" />
-                <StackPanel VerticalAlignment="Center">
+                           VerticalAlignment="Top" Margin="0,0,16,0" />
+                <StackPanel Grid.Column="1" VerticalAlignment="Center">
                     <TextBlock x:Name="StatusTitleText"
                                FontSize="18" FontWeight="SemiBold"
+                               TextWrapping="Wrap"
                                Foreground="{StaticResource Brush.Text.Primary}" />
                     <TextBlock x:Name="StatusSubtitleText"
                                FontSize="13"
+                               TextWrapping="Wrap"
                                Foreground="{StaticResource Brush.Text.Secondary}"
-                               Margin="0,2,0,0" />
-                </StackPanel>
+                               Margin="0,4,0,0" />
                 </StackPanel>
+            </Grid>
         </Border>
 
         <!-- Détails -->