Currently, I found out that the easiest way to change a username was to update `xf_user` and set the username to the new username, which then will update across the board accordingly. However, is this the best way to do it though? Also, I need to be able to change their profile picture to something else. I have their new profile picture at https://example.com/profiles/<username>/, but I cannot seem to find any way to update their profile picture. Thanks.