add export to json

qt/gui/dialogs.py

@@ -1,7 +1,7 @@
 from pathlib import Path
 
 from PySide6.QtWidgets import QDialog, QDialogButtonBox, QVBoxLayout, QLabel, QHBoxLayout, QPushButton, QFileDialog, \
-    QGroupBox, QCheckBox, QComboBox
+    QCheckBox, QComboBox
 
 
 class ExportKontorDialog(QDialog):
@@ -10,7 +10,7 @@ class ExportKontorDialog(QDialog):
 
         self.parent = parent
         self.kontor_db = kontor_db
-        self.file_name = None
+        self.file_name = "data.json"
         self.tables = []
         self._table_options = {}