refactor kontor-schema by moving classes to seprate modules

python/kontor-gui/gui/model_config.py

@@ -1,5 +1,6 @@
 from PySide6.QtWidgets import QHBoxLayout, QCheckBox, QMdiSubWindow
 from kontor_schema import KontorDB
+from kontor_schema.database import ColumnEntry
 
 
 class KontorModelConfig:
@@ -46,7 +47,7 @@ class KontorModelConfig:
         filter_layout = QHBoxLayout()
         for column, filter_info in self.filter.items():
             filter_checkbox = QCheckBox()
-            filter_checkbox.setText(filter_info['label'])
+            filter_checkbox.setText(filter_info[ColumnEntry.COLUMN_LABEL])
             filter_checkbox.checkStateChanged.connect(self.main_window.refresh)
             self.filter[column]['widget'] = filter_checkbox
             filter_layout.addWidget(filter_checkbox)