Reconstruct XamlBrowser sample with XAML from decompiled code

Created complete XamlBrowser sample application:
- App.xaml: Colors and styles for light/dark theme support
- App.xaml.cs: BrowserApp with ToggleTheme()
- MainPage.xaml: Toolbar (Back, Forward, Refresh, Stop, Home),
  address bar, Go button, WebView, status bar with theme toggle
- MainPage.xaml.cs: Navigation logic, URL handling, progress animation
- MauiProgram.cs: UseLinuxPlatform() configuration
- Program.cs: LinuxProgramHost entry point
- Resources/Images: 10 SVG icons for toolbar (dark/light variants)

UI matches screenshot provided by user:
- Dark gray toolbar with navigation buttons
- Entry field for URL with rounded corners
- Green "Go" button
- WebView displaying content
- Status bar with theme toggle

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

samples/XamlBrowser/MainPage.xaml.cs

@@ -0,0 +1,128 @@
+using System;
+using Microsoft.Maui;
+using Microsoft.Maui.Controls;
+
+namespace XamlBrowser;
+
+public partial class MainPage : ContentPage
+{
+    private const string HomeUrl = "https://openmaui.net";
+
+    public MainPage()
+    {
+        InitializeComponent();
+        AddressBar.Text = HomeUrl;
+    }
+
+    private void OnBackClicked(object? sender, EventArgs e)
+    {
+        Console.WriteLine($"[MainPage] OnBackClicked, CanGoBack={BrowserWebView.CanGoBack}");
+        if (BrowserWebView.CanGoBack)
+        {
+            BrowserWebView.GoBack();
+        }
+    }
+
+    private void OnForwardClicked(object? sender, EventArgs e)
+    {
+        Console.WriteLine($"[MainPage] OnForwardClicked, CanGoForward={BrowserWebView.CanGoForward}");
+        if (BrowserWebView.CanGoForward)
+        {
+            BrowserWebView.GoForward();
+        }
+    }
+
+    private void OnRefreshClicked(object? sender, EventArgs e)
+    {
+        Console.WriteLine("[MainPage] OnRefreshClicked");
+        BrowserWebView.Reload();
+    }
+
+    private void OnStopClicked(object? sender, EventArgs e)
+    {
+        LoadingProgress.IsVisible = false;
+        StatusLabel.Text = "Stopped";
+    }
+
+    private void OnHomeClicked(object? sender, EventArgs e)
+    {
+        NavigateTo(HomeUrl);
+    }
+
+    private void OnAddressBarCompleted(object? sender, EventArgs e)
+    {
+        NavigateTo(AddressBar.Text);
+    }
+
+    private void OnGoClicked(object? sender, EventArgs e)
+    {
+        NavigateTo(AddressBar.Text);
+    }
+
+    private void NavigateTo(string? url)
+    {
+        if (string.IsNullOrWhiteSpace(url))
+            return;
+
+        // Add protocol if missing
+        if (!url.StartsWith("http://", StringComparison.OrdinalIgnoreCase) &&
+            !url.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
+        {
+            // If it looks like a URL (contains dot and no spaces), add https
+            // Otherwise treat as a search query
+            url = url.Contains('.') && !url.Contains(' ')
+                ? "https://" + url
+                : "https://www.google.com/search?q=" + Uri.EscapeDataString(url);
+        }
+
+        AddressBar.Text = url;
+        BrowserWebView.Source = new UrlWebViewSource { Url = url };
+    }
+
+    private void OnWebViewNavigating(object? sender, WebNavigatingEventArgs e)
+    {
+        Console.WriteLine("[MainPage] Navigating to: " + e.Url);
+        StatusLabel.Text = $"Loading {e.Url}...";
+
+        // Reset and show progress bar with animation
+        LoadingProgress.AbortAnimation("Progress");
+        LoadingProgress.Progress = 0;
+        LoadingProgress.IsVisible = true;
+
+        // Animate progress from 0 to 90%
+        LoadingProgress.Animate("Progress",
+            new Animation(v => LoadingProgress.Progress = v, 0, 0.9),
+            length: 2000,
+            easing: Easing.CubicOut);
+
+        AddressBar.Text = e.Url;
+    }
+
+    private void OnWebViewNavigated(object? sender, WebNavigatedEventArgs e)
+    {
+        Console.WriteLine($"[MainPage] Navigated: {e.Url} - Result: {e.Result}");
+
+        StatusLabel.Text = e.Result == WebNavigationResult.Success ? "Done" : $"Error: {e.Result}";
+
+        // Complete progress bar
+        LoadingProgress.AbortAnimation("Progress");
+        LoadingProgress.Progress = 1;
+        AddressBar.Text = e.Url;
+
+        // Hide progress bar after a short delay
+        Dispatcher.DispatchDelayed(TimeSpan.FromMilliseconds(300), () =>
+        {
+            LoadingProgress.IsVisible = false;
+            LoadingProgress.Progress = 0;
+        });
+    }
+
+    private void OnThemeToggleClicked(object? sender, EventArgs e)
+    {
+        if (Application.Current is BrowserApp app)
+        {
+            app.ToggleTheme();
+            Console.WriteLine($"[MainPage] Theme changed to: {Application.Current.UserAppTheme}");
+        }
+    }
+}