customize quick tab switcher buttons

apps/weblibre/lib/core/routing/routes.settings.dart

@@ -117,6 +117,10 @@ part of 'routes.dart';
       name: 'ContextualToolbarSettingsRoute',
       path: 'contextual_toolbar',
     ),
+    TypedGoRoute<QuickSwitcherToolbarSettingsRoute>(
+      name: 'QuickSwitcherToolbarSettingsRoute',
+      path: 'quick_switcher_toolbar',
+    ),
     TypedGoRoute<DesktopModeSitesRoute>(
       name: 'DesktopModeSitesRoute',
       path: 'desktop_mode_sites',
@@ -354,6 +358,19 @@ class ContextualToolbarSettingsRoute extends GoRouteData
   }
 }
 
+class QuickSwitcherToolbarSettingsRoute extends GoRouteData
+    with $QuickSwitcherToolbarSettingsRoute {
+  const QuickSwitcherToolbarSettingsRoute();
+
+  @override
+  Widget build(BuildContext context, GoRouterState state) {
+    return const ContextualToolbarSettingsScreen(
+      location: ToolbarConfigLocation.quickSwitcher,
+      title: 'Customize Switcher Buttons',
+    );
+  }
+}
+
 class DesktopModeSitesRoute extends GoRouteData with $DesktopModeSitesRoute {
   const DesktopModeSitesRoute();