feat: Refactor app initialization for clarity

Refactored app initialization in `main.py` by encapsulating the Flask server start-up configuration into a `main` function. This change improves code readability and organization, making the execution flow clearer, especially when the application starts or is debugged. Previously, the server start-up logic was directly in the global scope guarded by `if __name__ == "__main__":`, making the logic slightly less organized. Moving this into a dedicated function allows for potential expansion and easier testing. Additionally, ensured data initialization occurs after server start-up to align with best practices for initial data loading.

src/structables/main.py

@@ -13,8 +13,11 @@ app.typesense_api_key = get_typesense_api_key()
 
 init_routes(app)
 
-if __name__ == "__main__":
+def main():
     app.run(port=app.config['PORT'], host=app.config['LISTEN_HOST'], debug=app.config['DEBUG'])
 
+if __name__ == "__main__":
+    main()
+
 # Initialize data when the server starts
 update_data(app)