Investigate upcoming changes to electrum-cash

Kallisti, [6/15/23 3:54 PM] @BitcoinCashPodcast heads up, GP is gonna be changing electrum-cash soon. I need to read Silverblood's comments more thoroughly to understand the implications for us, but I definitely welcome improvements to electrum-cash!

https://gitlab.com/GeneralProtocols/electrum-cash/library/-/issues/78#note_1429962261

https://gitlab.com/GeneralProtocols/electrum-cash/library/-/issues/86

https://gitlab.com/GeneralProtocols/electrum-cash/library/-/merge_requests/62

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