Scanning different key card (which is not empty) during Create Profile flow results in stuck on Preparing screen or overwriting keys on this keycard

[pavloburykh]

Potentially will be fixed in scope of #21647 cc @flexsurfer

Steps:

1. Start Creating Profile by scanning Keycard A
2. During second (final) scan use Keycard B which is not empty
3. Observe the result

Actual result:

1. Sometimes user stucks on Preparing screen
2. Sometimes profile is created successfully and Keycard B keys are overwritten

Expected result: It's a different key card screen should be shown. Or at least, until this screen is implemented for this flow, we should show Keycard not empty screen.

Additional Information

• Status version: nightly
• Operating System: Android, iOS