Add overdue task reminder notification setting

See https://kolaente.dev/vikunja/api/pulls/832

src/models/userSettings.js

@@ -8,6 +8,7 @@ export default class UserSettingsModel extends AbstractModel {
 			emailRemindersEnabled: true,
 			discoverableByName: false,
 			discoverableByEmail: false,
+			overdueTasksRemindersEnabled: true,
 		}
 	}
 }