- Updated DbHandler to accept configuration parameters instead of using environment variables directly.
- Moved database queries from handler.go to a dedicated queries package for better organization and separation of concerns.
- Implemented error handling in query functions to provide more informative error messages.
- Refactored image handling to utilize the new queries package for database interactions.
- Cleaned up unused code and comments across various files.
- Improved overall code readability and maintainability.
