Moving all this unread_count business out of session because I need it to be updated for every admin page visit. So will be including an admin-specific middleware instead.
New admin middleware - checks feedback data unread count and sets it as a local variable for use in templates.
Again, perils of not using inherited templates - missed out the unique admin icon.
Nice tooltips for the feedback buttons.
Adding a bigass Feedback button on the feedback page because, well, it looks sparse.