Fix issues with transfers from all different sources and destinations

[mmaurello]

• Separate transfers multiCurrencies when transferred asset does not pay for fees and 2 transfers when it does.
• Fix computed origin account calculations
• Fix Wormhole Wagmi Signer chain

Note: there are a few TODOs there with the explanations, but I'm facing some challenges and still want to keep the PRs small. I will be handling the TODOs in future PRs

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