convert Qt flags to int (fix Qt DeprecationWarning)

electrum/gui/qt/history_list.py

@@ -173,7 +173,7 @@ class HistoryNode(CustomNode):
                         msg = str(conf) + _(" confirmation" + ("s" if conf != 1 else ""))
                 return QVariant(msg)
             elif col > HistoryColumns.DESCRIPTION and role == Qt.TextAlignmentRole:
-                return QVariant(Qt.AlignRight | Qt.AlignVCenter)
+                return QVariant(int(Qt.AlignRight | Qt.AlignVCenter))
             elif col > HistoryColumns.DESCRIPTION and role == Qt.FontRole:
                 monospace_font = QFont(MONOSPACE_FONT)
                 return QVariant(monospace_font)
@@ -417,7 +417,7 @@ class HistoryModel(CustomModel, Logger):
         extra_flags = Qt.NoItemFlags # type: Qt.ItemFlag
         if idx.column() in self.view.editable_columns:
             extra_flags |= Qt.ItemIsEditable
-        return super().flags(idx) | extra_flags
+        return super().flags(idx) | int(extra_flags)
 
     @staticmethod
     def tx_mined_info_from_tx_item(tx_item):