Add Mail sync debug logging

[asoucar]

Fixes #9143

First pass at adding Mail sync debugging for #8836
Logs to a file any debug messaging related to mail syncing and exports to a file when logging ends or file is exported manually.

TODO to consider feature complete:

• The uncaught exception handler in case of crash
• Original request includes a 24 hour limit on logging. The current sync logs are very minimal and so I don't think this will be an issue right off the bat. I want to follow up with that work but didn't have the time. My intention is to use a workmanager, either one of the current ones or a new one, to schedule the end of the logging, but am open to other ideas