fix: improve composio gmail component stability (#7673)

* tool change check

* optimised logic

* Update composio_base.py

* update to the init logic

* Update gmail_composio.py

* update default tool logic

* Update src/backend/base/langflow/base/composio/composio_base.py

Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>

* Update test_gmail.py

---------

Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>

src/backend/tests/unit/components/bundles/composio/test_gmail.py

@@ -99,6 +99,7 @@ class TestGmailComponent(ComponentTestBaseWithoutClient):
         # For this specific test, we need to customize the action_data to handle results field
         component._actions_data = {
             "GMAIL_FETCH_EMAILS": {
+                "display_name": "Fetch Emails",
                 "action_fields": ["max_results", "query"],
                 "result_field": "messages",
                 "get_result_field": True,