Allow administrators to manage addresses for mailing list users
Summary: Ref T8387. Mostly just modernizes this panel to work for viewers vs users. Auto-verify these edits since they aren't otherwise verifiable.
Test Plan:
- Added, changed, removed addresses for a list.
- Used panel normally for my own account.
- Verified bots don't get a panel.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: eadler, epriestley
Maniphest Tasks: T8387
Differential Revision: https://secure.phabricator.com/D13125