feat: update Docker configuration and entrypoint script

- Removed obsolete Apache virtual host configuration from `000-default.conf`.
- Updated `docker-compose.yml` to use a custom entrypoint script.
- Refactored `entrypoint.sh` to streamline dependency installation and start the Octane server.
- Changed the application name in `package-lock.json` from "rann-graphic-design-website" to "app".