- Introduced new `SettingsRepository` and `CacheRepository` classes in the `autoload\Domain` namespace.
- Updated `SettingsController` in the `admin\Controllers` namespace to enhance settings management.
- Added new templates for settings in `admin\templates\settings` and `admin\templates\site`.
- Improved overall structure and organization of settings-related files.
- Added columns for two-factor authentication (2FA) in the pp_users table:
- twofa_enabled (TINYINT)
- twofa_email (VARCHAR)
- twofa_code_hash (VARCHAR)
- twofa_expires_at (DATETIME)
- twofa_sent_at (DATETIME)
- twofa_failed_attempts (INT)
- Updated the twofa_enabled and twofa_email for user with id 0.
- Enhanced .htaccess to disable directory listing, block execution of sensitive files, and prevent serving hidden files.
