rebase codebase, delete trunk, move threads to backend

src/ui/dialogs/confirm_extend.py

@@ -1,15 +1,15 @@
-
 from .dialog_sources.Ui_confirm_extend import Ui_extend_confirm
 from PyQt6 import QtWidgets
 
+
 class ConfirmExtend(QtWidgets.QDialog, Ui_extend_confirm):
     def __init__(self, parent=None):
         super().__init__(parent)
         self.setupUi(self)
-        
-        
+
+
 def launch():
     app = QtWidgets.QApplication([])
     window = ConfirmExtend()
     window.show()
-    app.exec()
+    app.exec()