[Keystone integration] The error should be shown if a user is trying to scan incorrect QR code

[liliya-soroka]

Describe the bug
The error should be shown if a user is trying to scan an incorrect QR code

To Reproduce
Steps to reproduce the behavior:

1. Try to connect keystone key using incorrect QR code or try to sign tx using incorrect QR code
   Current result: Nothing happens

Expected behavior
The error should be shown to the user that wrong QR code is used

Smartphone (please complete the following information):

• Device: pixel 6
• Android Version: Android 13
• App Version keystone_integration.apk

Environment
staging
Additional context
#1911

[zhiying-fan]

This is fixed, please have a look again.

[liliya-soroka]

Verified