removes activate_link callback, which was only for debugging. I'll implement it later
now loads user wnen click on user's mention in post.title. But if the profile is closed, it'll crash, to fix later.
now exiting instead of doing nothing when schema isn't found
now handleUris handles opening URLs in browsers.
adding 'this user is private' in user tab when the user is private, but this isn't always working.
removed unnecessary code and prints and comments
finally working 'this user is private' stub, progress!
fixed some errors and removed some comments