SIENTIAPDE-1478

Refactor Activities and API Integration for PI Web API

- Reintroduced the API import in the Activities class for proper integration.
- Cleaned up whitespace and formatting in the API class and related tests for improved readability.
- Updated test cases to ensure consistent formatting in error messages and configuration structures for PI Web API.
- Enhanced connectors_config.py with additional whitespace for better organization.

laborious/workflows/sub_workflows/format_and_export_prediction.py

@@ -154,7 +154,7 @@ class FormatAndExportPrediction:
             )
 
             write_transformed_handler = None
-        
+
         opc_metrics = {}
 
         # write to pi web api
@@ -197,7 +197,6 @@ class FormatAndExportPrediction:
             start_to_close_timeout=timedelta(seconds=180),
         )
 
-
         if write_transformed_handler is not None:
             await write_transformed_handler