* feat: wip, better digest handling (+ eventual digest resend logic)
- await emailer.send call in digest.send method
- save send success to a new sorted set digest:{interval}:byUid
* feat: continuing work on digest tools
- Added ACP page to view digest settings and delivery times per user
* feat: added paginator and stub buttons for resending digest
* feat: wrapping up digest revamp
- New language strings in ACP digest page
- Client-side ACP script for digest ACP page
- Websocket call for ACP page to execute digests
- Broke out logic to retrieve user digest settings to getUsersInterval
* fix: minor cleanup
* fix: #8010 and some style suggestions from baris
* fix: resolve confusing comment
Julian Lam