🔒 Lock access to OurCal app behind Touch ID or Face ID#118

Please implement so that you can enable TouchID / FaceID to the app. So you have to enter phone code, TGouchID or FaceID to open the app. On this way the app get more secure if the phne come in wrong hands.

This is now available in iOS 18 at a system level. Simply long press the OurCal app from your Home Screen and choose “Require Face ID”.