Support sending runes from non-zero-index

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It doesn't make sense to support this when users can't send them with an integrated function in the wallet but it will when we support sending.

Sending from non-zero-index is supported for inscriptions already when they are on (regenerated) taproot addresses.

We also want this for non-zero-index (i.e. m/86’/0’/0’/0/0 and m/86’/0’/0’/0/1 etc.) BTC balance and other assets on the native segwit address but we can create a seperate issue for that if that is not in scope right away.

I spoke to a user today that send assets to addresses generated in Ledger Live and that will give you a fresh address every time and hence assets will land on non-zero-index addresses. This could help them get them on the addresses that are supported by marketplaces (the 0 index: i.e. (account 1) m/86’/0’/0’/0/0 or (account 2) m/86’/0’/1’/0/0 ).