kivy: save manually entered amount into lightning invoices, as in Qt (related: #7935)
kivy: save manually entered amount into lightning invoices, as in Qt (related: #7935)

pooler/electrum-ltc,pooler/electrum-ltc,pooler/electrum-ltc,spesmilo/electrum,spesmilo/electrum,spesmilo/electrum,pooler/electrum-ltc,spesmilo/electrum