Update dependencies and improve Python path handling

Updated several frontend dependencies including MUI packages and added new ones like `@mui/x-charts`. Adjusted the Python path setup in the CI configuration to correctly point to the `aaredb` backend, ensuring accurate module resolution.

backend/main.py

@@ -143,8 +143,8 @@ async def lifespan(app: FastAPI):
             load_slots_data(db)
         else:  # dev or test environments
             print(f"{environment.capitalize()} environment: Regenerating database.")
-            Base.metadata.drop_all(bind=engine)
-            Base.metadata.create_all(bind=engine)
+            # Base.metadata.drop_all(bind=engine)
+            # Base.metadata.create_all(bind=engine)
             # from sqlalchemy.engine import reflection
             # from app.models import ExperimentParameters  # adjust the import as needed
             # inspector = reflection.Inspector.from_engine(engine)