NetStack: Fix locking
Change the monitor_lock to be a recursive_lock, fixing #7039.
Notify_device_monitor acquires the monitor lock, then the
monitor unregisters itself, calling unregister_device_monitor, which
acquires the monitor lock again.
HaikuDepot: Small code cleanups in PackageInfo.
HaikuDepot: WIP interface for logging in...

... or creating a new account in the web application. Just the interface,
nothing is functional, yet.
HaikuDepot: Add "Log in" menu item which shows new window
HaikuDepot: Don't right-align publisher/copyright...

... in the available space in the package title area. Just looks too random.