New to using Confluence and I am not sure if it is working as designed or I am not doing it right. What is the difference between Files and Attachments? I noticed that when I'm in PAGES, in the right top side of the screen, if I click on the 3 dots, there is Attachments. Then, there is also the Files. What's the best way to use these? I mean, on the left pane, there is shortcut for File list, then there is Page Tree with File List