Default to php 8.3 in nginx

Added volume command to setup local volumes in any location

Fixed build contexts

Build contexts contained version number even though we now moved to using args, avoiding the "Service phpXX has neither an image nor a build context specified. At least one must be provided." error.

Moved changephp to php-change

* all other commands are in the same scope

Show message if people didn't run dev setup

Updated readme to fit better with MySQL setup

Added dev run command

Added .env as environment file

No SSH agent running? No error

* no longer throw an error if no ssh agent is running

Support windows