use duckduckgo icon resolver

app/lib/domain/services/generic_website.dart

@@ -1,5 +1,6 @@
 import 'package:bang_navigator/core/http_error_handler.dart';
 import 'package:bang_navigator/domain/entities/web_page_info.dart';
+import 'package:bang_navigator/extensions/web_uri_favicon.dart';
 import 'package:bang_navigator/features/web_view/utils/favicon_helper.dart';
 import 'package:exceptions/exceptions.dart';
 import 'package:flutter/foundation.dart';
@@ -59,7 +60,12 @@ class GenericWebsiteService extends _$GenericWebsiteService {
             final url = Uri.parse(args[1]);
 
             final title = document.querySelector('title')?.text;
-            final favicon = choseFavicon(_extractFavicons(url, document));
+            final favicon = choseFavicon(_extractFavicons(url, document)) ??
+                //In case the icon can not get extracted, we use the resolver
+                //of duckduckgo
+                Favicon(
+                  url: WebUri.uri(url.genericFavicon()),
+                );
 
             return WebPageInfo(url: url, title: title, favicon: favicon)
                 .toJson();
@@ -70,4 +76,21 @@ class GenericWebsiteService extends _$GenericWebsiteService {
       exceptionHandler: handleHttpError,
     );
   }
+
+  Future<Result<Uint8List?>> getFaviconBytes(Uri url) {
+    return getInfo(url).then(
+      (result) => result.flatMapAsync(
+        (info) async {
+          if (info.favicon != null) {
+            return _client
+                .get(info.favicon!.url)
+                .then((response) => response.bodyBytes);
+          }
+
+          return null;
+        },
+        exceptionHandler: handleHttpError,
+      ),
+    );
+  }
 }

app/lib/domain/services/generic_website.g.dart

@@ -7,7 +7,7 @@ part of 'generic_website.dart';
 // **************************************************************************
 
 String _$genericWebsiteServiceHash() =>
-    r'd3d5ec8600842eb2b7fa40f248e5e448c96e987f';
+    r'bb36adc96b55531772554e79e4f72a6f5b038c52';
 
 /// See also [GenericWebsiteService].
 @ProviderFor(GenericWebsiteService)

app/lib/extensions/web_uri_favicon.dart

@@ -1,6 +1,4 @@
-extension WebUriFavicon on Uri {
-  Uri guessFavicon() => removeFragment().replace(
-        path: 'favicon.ico',
-        queryParameters: {},
-      );
+extension UriFavicon on Uri {
+  Uri genericFavicon() =>
+      Uri.parse('https://icons.duckduckgo.com/ip3/$host.ico');
 }

app/lib/features/web_view/presentation/widgets/favicon.dart

@@ -23,7 +23,7 @@ class FaviconImage extends StatelessWidget {
     if (webPageInfo.favicon != null) {
       return FadeInImage(
         placeholder: NetworkImage(
-          webPageInfo.url.guessFavicon().toString(),
+          webPageInfo.url.genericFavicon().toString(),
         ),
         image: NetworkImage(webPageInfo.favicon!.url.toString()),
         placeholderErrorBuilder: (_, __, ___) => _iconPlaceholder,
@@ -33,7 +33,7 @@ class FaviconImage extends StatelessWidget {
       );
     } else {
       return Image.network(
-        webPageInfo.url.guessFavicon().toString(),
+        webPageInfo.url.genericFavicon().toString(),
         errorBuilder: (_, __, ___) => _iconPlaceholder,
         height: size,
         width: size,