fix format_satoshis for None values
fix format_satoshis for None values

imrehg/electrum,digitalbitbox/electrum,fireduck64/electrum,fireduck64/electrum,neocogent/electrum,vertcoin/electrum-vtc,lbryio/lbryum,dabura667/electrum,protonn/Electrum-Cash,FairCoinTeam/electrum-fair,dabura667/electrum,dabura667/electrum,procrasti/electrum,dashpay/electrum-dash,dashpay/electrum-dash,pknight007/electrum-vtc,pooler/electrum-ltc,procrasti/electrum,imrehg/electrum,pknight007/electrum-vtc,cryptapus/electrum-uno,digitalbitbox/electrum,wakiyamap/electrum-mona,neocogent/electrum,imrehg/electrum,spesmilo/electrum,kyuupichan/electrum,wakiyamap/electrum-mona,kyuupichan/electrum,aasiutin/electrum,spesmilo/electrum,fireduck64/electrum,argentumproject/electrum-arg,asfin/electrum,digitalbitbox/electrum,fyookball/electrum,fujicoin/electrum-fjc,pknight007/electrum-vtc,cryptapus/electrum-uno,cryptapus/electrum,aasiutin/electrum,neocogent/electrum,wakiyamap/electrum-mona,protonn/Electrum-Cash,procrasti/electrum,aasiutin/electrum,aasiutin/electrum,dashpay/electrum-dash,pknight007/electrum-vtc,molecular/electrum,digitalbitbox/electrum,cryptapus/electrum-uno,fujicoin/electrum-fjc,fyookball/electrum,vialectrum/vialectrum,vertcoin/electrum-vtc,cryptapus/electrum,argentumproject/electrum-arg,protonn/Electrum-Cash,cryptapus/electrum-myr,molecular/electrum,fujicoin/electrum-fjc,asfin/electrum,molecular/electrum,pooler/electrum-ltc,vertcoin/electrum-vtc,pooler/electrum-ltc,vertcoin/electrum-vtc,wakiyamap/electrum-mona,pooler/electrum-ltc,vialectrum/vialectrum,cryptapus/electrum-myr,kyuupichan/electrum,lbryio/lbryum,argentumproject/electrum-arg,procrasti/electrum,spesmilo/electrum,molecular/electrum,FairCoinTeam/electrum-fair,fyookball/electrum,fireduck64/electrum,romanz/electrum,argentumproject/electrum-arg,dabura667/electrum,cryptapus/electrum,romanz/electrum,dashpay/electrum-dash,cryptapus/electrum-myr,imrehg/electrum,FairCoinTeam/electrum-fair,protonn/Electrum-Cash,cryptapus/electrum-uno,romanz/electrum,cryptapus/electrum-myr,FairCoinTeam/electrum-fair,spesmilo/electrum,vialectrum/vialectrum,asfin/electrum