Display Bitbox02 pairing code when adding a new key to wallet

[zixxtech]

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@doomio

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           Issue Description 

When creating a new wallet in Liana, the BitBox02 device requires a user to verify a "pairing code" that is displayed on the LCD of the device. The Liana-gui does not display this code, and the user must blindly accept the pair without verifying with the application.

In java, but an example from sparrow: sparrowwallet/sparrow@95200c7#diff-4a3ed318e4c042e237f5bd8243503cda32813dcce7255ac7293a3b26b05fb4a6

[github-actions]

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