TF-3609 Rename the test file to make it simpler and easier to understand.

Signed-off-by: dab246 <tdvu@linagora.com>

integration_test/tests/email_detailed/delete_email_test.dart

@@ -0,0 +1,9 @@
+import '../../base/test_base.dart';
+import '../../scenarios/email_detailed/delete_email_scenario.dart';
+
+void main() {
+  TestBase().runPatrolTest(
+    description: 'Should see email in Trash folder when open detailed email and delete email successfully',
+    scenarioBuilder: ($) => DeleteEmailScenario($),
+  );
+}