fix: remove unnecessary PySide imports

bec_widgets/utils/settings_dialog.py

@@ -1,5 +1,5 @@
 from bec_lib.logger import bec_logger
-from PySide6.QtGui import QCloseEvent
+from qtpy.QtGui import QCloseEvent
 from qtpy.QtWidgets import QDialog, QDialogButtonBox, QHBoxLayout, QPushButton, QVBoxLayout, QWidget
 
 from bec_widgets.utils.error_popups import SafeSlot

bec_widgets/utils/ui_loader.py

@@ -9,7 +9,7 @@ from bec_widgets.utils.plugin_utils import get_custom_classes
 logger = bec_logger.logger
 
 if PYSIDE6:
-    from PySide6.QtUiTools import QUiLoader
+    from qtpy.QtUiTools import QUiLoader
 
     class CustomUiLoader(QUiLoader):
         def __init__(self, baseinstance, custom_widgets: dict | None = None):