[Improvement] Antivirus feature refactoring

[MontaGhanmy]

For the second iteration of the antivirus feature, we need to:

• Add antivirus (AV) status at the file version level. [TO_DISCUSS]
• Make all numeric lists into a single export location (e.g., an enumeration for user notification statuses).
• Validate av_status at the file service level using a boolean to determine whether to bypass/confirm an unsafe read.
• Disable email notifications for "file too large" /"skipped" status.
• Rename and refactor the flag used to enable the antivirus (AV) feature.

[shepilov]

"Disable email notifications for "file too large" /"skipped" status." it's not just diable, we need then notification on UI to user, that we won't scan this file, and it should be don't after new upload widget that @ericlinagora is doing

[ericlinagora]

can we get the size threshold client side ?