Poll feature request

First off, love the addition of polls. However, for my server, it currently falls short of replacing our existing poll bot because users cannot see the duration of a poll after it ends.

This is particularly important for our server as we use polls to vote on proposals for rules/actions in our fantasy league. One stipulation is that polls that are at least 7 days long can be passed without unanimous support. Unfortunately, after a Discord poll ends, nobody can see whether the poll was up for at least 7 days. However, even if a server doesn't use polls for this specific purpose, the ability to see poll duration would still be useful for any situation where voting on time-sensitive proposals is important.

Perhaps the duration could be displayed alongside the final results, or maybe it can be displayed when clicking / hovering over the "POLL", "X votes", or "Poll closed" buttons/icons.

Thanks for your consideration!