[web] Show ENS names for HistoryRevision

Summary: I changed HistoryRevisionInfo for this diff, which is a type returned by keyserver. Since this type is only used in web, I judged it safe to change this on the keyserver side without considering older clients.

Test Plan:
I used this patch to get ENS to work in my dev environment

Reviewers: atul

Reviewed By: atul

Subscribers: tomek

Differential Revision: https://phab.comm.dev/D6474