fix: make chat input sorting logic exclude other components (#5760)

* fix: Adjust chat input handling in layer sorting logic

* fix: Update chat input sorting logic and assertions in tests

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* fix: Update test assertion for chat input sorting to reflect changes in expected output

* [autofix.ci] apply automated fixes

* fix: update vertex sorting logic to handle start_component_id condition

- Modified the condition for sorting layers to include a check for start_component_id being None, ensuring correct behavior when this parameter is not set.
- This change improves the accuracy of the vertex sorting process in the graph utility functions.

* fix: update test assertion for vertex IDs in test_get_vertices

- Modified the test assertion in `test_get_vertices` to reflect the expected output, ensuring it only checks for "ChatInput" in the returned IDs.
- This change improves the accuracy of the test by aligning it with the current expected behavior of the endpoint.

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* [autofix.ci] apply automated fixes (attempt 2/3)

* [autofix.ci] apply automated fixes (attempt 3/3)

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Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Ítalo Johnny <italojohnnydosanjos@gmail.com>

src/backend/tests/unit/test_endpoints.py

@@ -257,7 +257,7 @@ async def test_get_vertices(client, added_flow_webhook_test, logged_in_headers):
     # The important part is before the - (ConversationBufferMemory, PromptTemplate, ChatOpenAI, LLMChain)
     ids = [_id.split("-")[0] for _id in response.json()["ids"]]
 
-    assert set(ids) == {"ChatInput", "Webhook"}
+    assert set(ids) == {"ChatInput"}
 
 
 async def test_build_vertex_invalid_flow_id(client, logged_in_headers):