refactor: update configuration handling and OpenAI client initialization

src/ui/widgets/graph.py

@@ -1,10 +1,11 @@
 import random
-from typing import Union, Any
+import sys
+from typing import Any, Union
 
+import loguru
 import pyqtgraph as pg
 from PyQt6 import QtWidgets
-import loguru
-import sys
+
 from src import LOG_DIR
 
 log = loguru.logger