Add property of the print job being made by the current user

According to the Account API, is this print job made by the same user?
This property is a bit inaccurate, in that this matches by the user name. The user name might be duplicate in some systems.

Contributes to issue CURA-9220.

cura/PrinterOutput/Models/PrintJobOutputModel.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2018 Ultimaker B.V.
+# Copyright (c) 2022 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from typing import Optional, TYPE_CHECKING, List
@@ -6,6 +6,8 @@ from typing import Optional, TYPE_CHECKING, List
 from PyQt6.QtCore import pyqtSignal, pyqtProperty, QObject, pyqtSlot, QUrl
 from PyQt6.QtGui import QImage
 
+from cura.CuraApplication import CuraApplication
+
 if TYPE_CHECKING:
     from cura.PrinterOutput.PrinterOutputController import PrinterOutputController
     from cura.PrinterOutput.Models.PrinterOutputModel import PrinterOutputModel
@@ -86,6 +88,13 @@ class PrintJobOutputModel(QObject):
             self._owner = owner
             self.ownerChanged.emit()
 
+    @pyqtProperty(bool, notify = ownerChanged)
+    def isMine(self) -> bool:
+        """
+        Returns whether this print job was sent by the currently logged in user.
+        """
+        return self._owner == CuraApplication.getInstance().getCuraAPI().account.userName
+
     @pyqtProperty(QObject, notify=assignedPrinterChanged)
     def assignedPrinter(self):
         return self._assigned_printer