feat: fetch zonefile data from bns v2 api

[alter-eggo]

Try out Leather build fe03508 — Extension build, Test report, Storybook, Chromatic

This pr adds fetching zonefile from bns v2

[314159265359879]

I see 404's (I tested if that was related to a VPN I was using, doesn't look like it)

[314159265359879]

API says there is no zonefile... for it to get the stacks address mapping it shouldn't need a zonefile right?

https://api.bnsv2.com/resolve-name/werner.btc
{"error":"No zonefile found"}