Add new tab views for image catalog functionality

- Implement GeneralTabView for source and destination path settings, options, processing parameters, and image library selection.
- Create LogoTabView for logo selection, preview, and positioning options.
- Add PhotoTabView for photo dimensions and JPEG quality settings.
- Introduce RaceUploadTabView for race setup and processed photo upload functionality, including API integration.
- Develop TextTabView for horizontal and vertical text settings, font options, and race time configuration.
- Implement ThumbnailsTabView for thumbnail creation options and settings.

imagecatalog/AvaloniaViews/GeneralTabView.axaml.cs

@@ -0,0 +1,56 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using System;
+using System.Diagnostics;
+using System.IO;
+
+namespace ImageCatalog_2.AvaloniaViews;
+
+public partial class GeneralTabView : Avalonia.Controls.UserControl
+{
+    public GeneralTabView()
+    {
+        InitializeComponent();
+    }
+
+    private void OpenSourceFolder_Click(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is DataModel model)
+        {
+            OpenInExplorer(model.SourcePath);
+        }
+    }
+
+    private void OpenDestinationFolder_Click(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is DataModel model)
+        {
+            OpenInExplorer(model.DestinationPath);
+        }
+    }
+
+    private static void OpenInExplorer(string? path)
+    {
+        if (string.IsNullOrWhiteSpace(path))
+        {
+            return;
+        }
+
+        var normalizedPath = path.Trim().Trim('"');
+        try
+        {
+            if (File.Exists(normalizedPath))
+            {
+                Process.Start("explorer.exe", $"/select,\"{normalizedPath}\"");
+            }
+            else if (Directory.Exists(normalizedPath))
+            {
+                Process.Start(new ProcessStartInfo { FileName = normalizedPath, UseShellExecute = true });
+            }
+        }
+        catch
+        {
+            // Ignore failures when opening Explorer.
+        }
+    }
+}