rename context menus earch to 'new tab'

app/lib/features/geckoview/domain/providers.dart

@@ -42,7 +42,7 @@ GeckoSelectionActionService selectionActionService(Ref ref) {
 
   unawaited(
     service.setActions([
-      SearchAction((text) async {
+      NewTabAction((text) async {
         final router = await ref.read(routerProvider.future);
         final settings = ref.read(generalSettingsWithDefaultsProvider);
         final route = SearchRoute(

packages/flutter_mozilla_components/lib/src/domain/entities/default_selection_actions.dart

@@ -48,11 +48,11 @@ class DefaultSearchAction extends BaseSelectionAction {
       );
 }
 
-class SearchAction extends BaseSelectionAction {
-  SearchAction(PerformAction action)
+class NewTabAction extends BaseSelectionAction {
+  NewTabAction(PerformAction action)
     : super(
-        id: 'CUSTOM_CONTEXT_MENU_SEARCH',
-        title: 'Search',
+        id: 'CUSTOM_CONTEXT_MENU_NEW_TAB',
+        title: 'New Tab',
         performAction: action,
       );
 }