add isolated tab feature

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

@@ -79,7 +79,7 @@ class BrowserRoute extends GoRouteData with $BrowserRoute {
   }
 }
 
-enum TabType { regular, private, child }
+enum TabType { regular, private, child, isolated }
 
 class SearchRoute extends GoRouteData with $SearchRoute {
   static const String emptySearchText = ' ';

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

@@ -664,6 +664,7 @@ const _$TabTypeEnumMap = {
   TabType.regular: 'regular',
   TabType.private: 'private',
   TabType.child: 'child',
+  TabType.isolated: 'isolated',
 };
 
 mixin $TabViewRoute on GoRouteData {