Xpub Multisig works vs while Zpub Multisig does not

## Issue:
* Cannot sign multisig using Jade zpub

## Description:
Testing out the Jade I extracted a zpub from the Jade using the Green app (Jade Wallet -> Settings -> Settings -> Watch-only -> Standard). Then a built a simple multisig using it, the mater fingerprint, and the derivation path `m/48'/0'/0'/2'`.

The Jade refused to sign with an error stating a matching pubkey could not be found in the PSBT.

I repeated the same process, instead using Sparrow and the HWI, which resulted in an xpub (despite it being a multisig) and the signing was successful.

## Desired Behavior:
Jade should search through all variants x/z/etc pubs and common derivation paths for matching public keys, and proceed with the signing process.