Hide Zap option for profiles with no lightening address

[0n4t3]

I was using npub.pro and noticed there was a zap option on my profile despite not having a lightening address setup. I clicked zap and selected an amount to see what it would do, but it gave the error

Error: failed to retrieve zap endpoint :(

Either automatically hiding the zap option if there's no lightening address in a profile, or letting people enable/disable the zap option in their settings regardless of if they have a lightening address might be a good way to avoid some confusion.

Thanks