No longer require restart for toggle exchange rate
No longer require restart for toggle exchange rate

Fixes issue #643 and allows fiat button to work without restart

No logic is required because Send tab gets removed and added for every
toggle.

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