* Display QR button on login screen if HS supports
* Create start screen
* Add build flag
* Connect start screen to the login
* QR display screen
* Move `LabelledDividerView` into separate file
* Show display QR screen on button tap
* Add swift concurreny to CameraAccessManager
* Introduce `QRLoginServiceProtocol`
* Use new service in screens
* Introduce scan QR code screen
* Remove hardcoded service availability
* Remove unnecessary import
* Add confirmation screen
* Add loading screen
* Fix ZXingObjc targets
* Add failure screen
* Add strings
* Various UI tweaks, navigation according to the service state
* Fix tests
* Add string for invalid QR error
* Add QR login service mode
