Update Docker Dev Setup

[betsyecastro]

Replaces PR #211 to remove containerized PDF files generation. Includes:

• localdev-shared-services network setup to connect to Redis and MySQL services.
• nginx-proxy network setup for proxy server.
• .docker/ directory with Apache and PHP configurations.
• Xdebug and ImageMagick extensions available in the PHP container for local development.
• Mail catcher setup.

.env requirements:

• CONTAINER_ENV=local
• APP_ADDRESS="profiles.test"
• DB_HOST=db
• DB_PASSWORD=
• REDIS_HOST=redis