* Harmonization of the expired QR-Code

* implmentation and refactoring of the asyncRegisterDevice method

* fix detekt pipeline issue

* test failing pipeline fix

* QRCode Exceotion, observevent and timestamp improvements as per code reviews

* removed deregistration logic from Fragment to viewModel

UI Thread protection as this is important logic and should run on ViewModel

* Code conflict resolution

* ktlint fixes

* changin the method deregisterTestFromDevice() to private

* scanStatus SingleLIveEvent and relevant test cases added

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>