Exclude mailbox from banner

As an MSP I want our support@ mailbox to be excluded from the banner, but I still want INKY to stop obvious attack emails. I can adjust labels/actions as an admin in the INKY portal, but right now the banner is adding spam and confusion to tickets.

Also requested: Per-user and per-organizational-unit banner suppression — the ability to set different banner visibility profiles for different people, similar to how signature profiles work. Some users/mailboxes need limited or no banner visibility while still being protected.