Add Testnet to main window title in testnet mode
Add Testnet to main window title in testnet mode

cryptapus/electrum,vialectrum/vialectrum,wakiyamap/electrum-mona,romanz/electrum,spesmilo/electrum,wakiyamap/electrum-mona,pooler/electrum-ltc,asfin/electrum,spesmilo/electrum,spesmilo/electrum,neocogent/electrum,pooler/electrum-ltc,wakiyamap/electrum-mona,pooler/electrum-ltc,fujicoin/electrum-fjc,romanz/electrum,wakiyamap/electrum-mona,fujicoin/electrum-fjc,digitalbitbox/electrum,cryptapus/electrum,fujicoin/electrum-fjc,digitalbitbox/electrum,vialectrum/vialectrum,pooler/electrum-ltc,spesmilo/electrum,digitalbitbox/electrum,asfin/electrum,neocogent/electrum,cryptapus/electrum,kyuupichan/electrum,romanz/electrum,neocogent/electrum,kyuupichan/electrum,asfin/electrum,vialectrum/vialectrum,kyuupichan/electrum,digitalbitbox/electrum