Subtle changes, bugs and feedback

I've got it taking larger files.

Presently it's set to take 30MB.

This is in 4 places:

1. nginx on load balancers
   
2. nginx on web UI
   
3. web UI python
   
4. Go API
   
   • controllers/attachments.go
     
   • models/file.go
     
     

I've tested 5.7MB and it worked, and then tested for 29MB and that worked.

Huge files can be seen here: https://www.lfgss.com/conversations/253639/?offset=400#13663180