fix: Ensure that we properly format data outputs in the chat (#8132)

* fix: If a list is returned, make sure we convert to string

* Prettify the data output

* Updates based on feedback, safe encoding

* Fix chat output unit test

* Ensure all starter projects are updated

src/backend/tests/unit/components/outputs/test_chat_output_component.py

@@ -53,7 +53,7 @@ class TestChatOutput(ComponentTestBaseWithClient):
         data = Data(text="Test data message")
         component.input_value = data
         result = await component.message_response()
-        assert result.text == "Test data message"
+        assert result.text == '```json\n{\n  "text": "Test data message"\n}\n```'
         assert result.sender == MESSAGE_SENDER_AI
 
     async def test_process_dataframe_input(self, component_class, default_kwargs):