fix package manager page

StabilityMatrix.Avalonia/ViewModels/LaunchPageViewModel.cs

@@ -46,8 +46,8 @@ public partial class LaunchPageViewModel : PageViewModelBase
     {
         var info = new ProcessStartInfo
         {
-            FileName = "py",
-            WorkingDirectory = "py",
+            FileName = "python",
+            //WorkingDirectory = "py",
             Arguments = "-uc \"import tqdm, time; print('start'); [time.sleep(0.1) for _ in tqdm.tqdm(range(25))]; print('end')\""
         };
 
@@ -61,7 +61,7 @@ public partial class LaunchPageViewModel : PageViewModelBase
     private void OnProcessOutputReceived(ProcessOutput output)
     {
         var raw = output.RawText;
-        // Replace /n and /r with literals
+        // Replace \n and \r with literals
         raw = raw.Replace("\n", "\\n").Replace("\r", "\\r");
         Debug.WriteLine($"output raw: '{raw}', output: '{output.Text}', clear lines: {output.ClearLines}");
         Debug.Flush();

StabilityMatrix.Avalonia/ViewModels/PackageManagerViewModel.cs

@@ -33,6 +33,11 @@ public partial class PackageManagerViewModel : PageViewModelBase
         Packages = new ObservableCollection<InstalledPackage>(settingsManager.Settings.InstalledPackages);
     }
 
+    public PackageManagerViewModel() : this(new SettingsManager(), null!)
+    {
+        
+    }
+
     [NotifyPropertyChangedFor(nameof(ProgressBarVisibility))]
     [ObservableProperty]
     private int progressValue;

StabilityMatrix.Avalonia/Views/MainWindow.axaml

@@ -11,7 +11,9 @@
                      x:Class="StabilityMatrix.Avalonia.Views.MainWindow"
                      x:DataType="vm:MainWindowViewModel"
                      Icon="/Assets/Icon.ico"
-                     Title="StabilityMatrix.Avalonia">
+                     Width="900"
+                     Height="650"
+                     Title="Stability Matrix Avalonia">
 
     <Design.DataContext>
         <vm:MainWindowViewModel />
@@ -56,6 +58,8 @@
             Grid.RowSpan="2"
             AlwaysShowHeader="False"
             PaneDisplayMode="Left"
+            IsPaneOpen="False"
+            OpenPaneLength="200"
             Content="{Binding CurrentPage}"
             MenuItemsSource="{Binding Pages, Mode=OneWay}"
             SelectedItem="{Binding SelectedCategory}"

StabilityMatrix.Avalonia/Views/PackageManagerPage.axaml

@@ -45,7 +45,6 @@
                     Command="{Binding ShowInstallWindowCommand}"
                     Height="40"
                     HorizontalAlignment="Stretch"
-                    IsEnabled="{Binding InstallButtonEnabled, FallbackValue=True}"
                     Margin="0,0,0,16"
                     VerticalContentAlignment="Center">
                     <StackPanel Orientation="Horizontal">
@@ -59,10 +58,9 @@
 
                 <ListBox
                     ItemsSource="{Binding Packages}"
-                    SelectedItem="{Binding SelectedPackage, Mode=TwoWay}"
-                    IsVisible="{Binding InstallButtonVisibility, FallbackValue=True}">
+                    SelectedItem="{Binding SelectedPackage, Mode=TwoWay}">
 
-                    <ListBox.Template>
+                <ListBox.Template>
                         <ControlTemplate>
                             <Border
                                 BorderBrush="#FFCCCCCC"