mark items as owned and unowned

gui/modules/account/owning.py

@@ -0,0 +1,14 @@
+from gui.gui import Ui_MainWindow
+from gui.modules.core import items_list
+from modules.database import Database
+
+
+def on_change_owning_clicked(ui: Ui_MainWindow):
+    if items_list.selected_item(ui) not in Database.get_profile().owned_items:
+        Database.set_owned(items_list.selected_item(ui))
+        ui.own_button.setText("Mark this item as unowned")
+        items_list.refill_list(ui)
+    else:
+        Database.set_unowned(items_list.selected_item(ui))
+        ui.own_button.setText("Mark this item as owned")
+        items_list.refill_list(ui)