add nftables rules

[Haui1112]

Let me stress how great this app is and how much hassle it saves with sonos systems.

that said, running it on postmarketOS would be easier if we had rules for the nftables firewall to apply, equivalent to iptables/ufw.

I'm no expert in nftables so maybe someone from the community has a script/file ready to take care of this.

Right now, I disable the firewall when I want to use noson but with a mobile device, no firewall means "exposed host" which is harsh for a device that has a camera and a microphone.

thanks again and have a great day.