TF-4301 Add E2E tests for label creation and tagging from email view

integration_test/tests/labels/create_a_new_tag_from_an_email_test.dart

@@ -0,0 +1,10 @@
+import '../../base/test_base.dart';
+import '../../scenarios/labels/create_a_new_tag_from_an_email_scenario.dart';
+
+void main() {
+  TestBase().runPatrolTest(
+    description:
+        'Should create a new label and add to email when select "Create a new Label" button in add label modal of detailed email view',
+    scenarioBuilder: ($) => CreateANewTagFromAnEmailScenario($),
+  );
+}