mainly whitespace, but also some generic qol improvements

src/analysis/intragroupfunctionalconnectivity.py

@@ -64,7 +64,7 @@ class IntraGroupFunctionalConnectivityWidget(IntraGroupUIMixin, FlaresBaseWidget
         epochs_dict: dict[str, Epochs],
         group_dict: dict[str, str],
     ) -> None:
-        
+
         super().__init__("IntraGroupFunctionalConnectivity")
         self.setWindowTitle(f"Intra-Group Functional Connectivity Viewer [BETA] - {APP_NAME.upper()}")
         self.haemo_dict = haemo_dict