Renaming in Docker setup to mbin + Improved bare metal setup configs

[melroy89]

• Rename now also the /var/www folder in the Docker setup to mbin
• Auto format Caddyfile (using the caddy fmt)
• Improve bare metal setup, including additional realpath cache settings (omitting the opcache.preload script, that caused issues with other PHP websites on the same server I have).
• Ignore metal directory.

Tested Docker setup.. Everything still seems to work fine:

docker ps
CONTAINER ID   IMAGE                          COMMAND                  CREATED         STATUS                   PORTS                                                                                                           NAMES
b940bd3a59fa   mbin                           "./docker-entrypoint…"   6 minutes ago   Up 6 minutes (healthy)   2019/tcp, 9000/tcp, 0.0.0.0:8008->80/tcp, :::8008->80/tcp                                                       docker-www-1
dfe2eaa5e920   mbin                           "./docker-entrypoint…"   6 minutes ago   Up 6 minutes (healthy)   2019/tcp, 9000/tcp                                                                                              docker-messenger-1
de67262e3516   mbin                           "./docker-entrypoint…"   6 minutes ago   Up 6 minutes (healthy)   2019/tcp, 9000/tcp                                                                                              docker-php-1
9850fe198eb7   mbin                           "./docker-entrypoint…"   6 minutes ago   Up 6 minutes (healthy)   2019/tcp, 9000/tcp                                                                                              docker-messenger_ap-1
9f928ac12034   rabbitmq:3-management-alpine   "docker-entrypoint.s…"   6 minutes ago   Up 6 minutes             4369/tcp, 5671-5672/tcp, 15671/tcp, 15691-15692/tcp, 25672/tcp, 0.0.0.0:15672->15672/tcp, :::15672->15672/tcp   docker-rabbitmq-1
ab140deea391   postgres:16-alpine             "docker-entrypoint.s…"   6 minutes ago   Up 6 minutes             5432/tcp                                                                                                        docker-db-1
a11fd473b43e   redis:alpine                   "docker-entrypoint.s…"   6 minutes ago   Up 6 minutes (healthy)   6379/tcp     

[nobodyatroot]

Also verified all the docker changes still work, looks good to me.