- Updated the calculation of total disk limit and bandwidth limit to convert values from MB to GB for better clarity in the system status display.
- Ensured default values are maintained when limits are not set, enhancing the robustness of resource reporting.
https://github.com/usmannasir/cyberpanel/issues/1592
- Introduced a new model `UserNotificationPreferences` to store user-specific notification dismissal settings.
- Added context processor to include notification preferences in templates.
- Implemented API endpoints to dismiss backup and AI scanner notifications permanently.
- Updated front-end logic to handle notification dismissal via server-side checks and API calls.
- Enhanced documentation to include a new Custom CSS Guide for theme customization.
