- Implemented a new admin panel that allows administrators to view
statistics and manage weather art. The panel includes:
- A card displaying total images and today's images
- Buttons to generate new art and edit the city
- Added `admin?` helper method to check if the current user is an
administrator.
- Updated database configuration to use safer credentials lookup
method `dig` for development database URL instead of the
previous method, improving reliability in accessing nested
credentials.
