reorganize files for Qt application

qt/kontor.py

@@ -0,0 +1,21 @@
+"""
+PyQT6 GUI for Kontor
+"""
+import sys
+from pathlib import Path
+from platformdirs import PlatformDirs
+from PySide6.QtWidgets import QApplication
+import yaml
+
+from gui.main_window import MainWindow
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    dirs = PlatformDirs("kontor")
+    database_config = Path(dirs.user_config_dir, 'database-config.yaml')
+    with open(database_config, 'rt') as f:
+        db_config = yaml.safe_load(f.read())
+    window = MainWindow(db_config)
+    window.show()
+    app.exec()