Notifications rework
An initial implementation could use InfoBar, alternatively, the solution at https://stackoverflow.com/questions/45431512/gtk-in-app-notifications-api-referece Follows the HIG and it is closer to the already implemented notification system in place, but requires use of a overlays on the top level, I don't know if the structure of the app allows this at the moment, but https://gitlab.gnome.org/World/PasswordSafe/-/merge_requests/292 makes it easy at least.
Prior issues: https://gitlab.gnome.org/World/PasswordSafe/-/issues/120
Requirements:
- The code should be globally accessible to the application, the right place should be main_window.py.
- Saving and locking (automatic or not) the safe should use this notification
- Ditto for the 'Coppied to Clipboard' notification
- The older system should be replaced completely
- Notification should go away after a few secods
- Have an x button
Edited by Maximiliano