added ruff code reivew

examples/gui/viewer3d/widgets/settings_panel.py

@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-from PyQt5.QtCore import QSize, Qt, pyqtSignal
+from PyQt5.QtCore import QSize, pyqtSignal
 from PyQt5.QtWidgets import (
     QCheckBox,
     QComboBox,
@@ -14,11 +14,11 @@ from PyQt5.QtWidgets import (
     QVBoxLayout,
     QWidget,
 )
-
-from orisys.finger import DEFAULT_FINGER_EXPORT_DIR
 from viz.render_2d import ArrowBackground
 
-from ..layout import DashboardLayout, LAYOUT
+from orisys.finger import DEFAULT_FINGER_EXPORT_DIR
+
+from ..layout import LAYOUT, DashboardLayout
 from ..mesh_view_state import MeshViewState
 from ..transport_icons import reset_icon, transport_icon