add NWC to Settings menu

as it is not currently intuitive for users currently zapping without NWC to find the settings menu.

See nostr:nevent1qqsqs9nsrzry9373fwtchjjglkvavt9wmhf6cljrtcgeee3thaxxw8spz9mhxue69uhkummnw3ezuamfdejj7q3qgcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqxpqqqqqqztxza7y