fs: refactor public banner, make it aware that keybase.pub is dumb (#22077)
fs: refactor public banner, make it aware that keybase.pub is dumb (#22077)

* fs: refactor public banner, make it aware that keybase.pub is dumb

* eslint

* more eslint

keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client