Staging-62

What's Changed

• ISSUE #1837: Update from created_at to submission_date by @therealslimhsiehdy in #1886
• Issue #1839: domain request form layout changes by @dave-kennedy-ecs in #1879
• [on getgov-backup] ISSUE #1727: You've Got Mail -- "Full Domain Metadata" Encrypted + Emailed to Team Inbox by @therealslimhsiehdy in #1856
• New dev sandbox meoward & bob by @abroddrick in #1905

Full Changelog: staging-61...staging-62