tab edit initial

app/lib/core/routing/routes.browser.dart

@@ -136,10 +136,16 @@ class SearchRoute extends GoRouteData with $SearchRoute {
 
   final bool launchedFromIntent;
 
+  /// When provided, the search screen will load URLs into this existing tab
+  /// instead of creating a new tab. This also changes the UI to show
+  /// site-specific bangs instead of the tab type selector.
+  final String? tabId;
+
   const SearchRoute({
     required this.tabType,
     this.searchText = SearchRoute.emptySearchText,
     this.launchedFromIntent = false,
+    this.tabId,
   });
 
   @override
@@ -150,6 +156,7 @@ class SearchRoute extends GoRouteData with $SearchRoute {
           ? null
           : searchText,
       launchedFromIntent: launchedFromIntent,
+      tabId: tabId,
     );
   }
 }