Since we're going to setup a database as a primary data persistence, Redis won't be needed a primary memory store but just as a caching layer. So all redis connection errors are handled to prevent the errors from crashing the Nodejs server

* configure a retry strategy for redis client when connection to Redis server is unavailable
* ping Redis server every 60 minutes to prevent an idle connection timeout
* add event listeners to redis client for basic logging
* set log level to emergency on Nodejs server crashes
* add redis client names for Nodejs connection to Redis server and rate-limit store connection to Redis server
* format Redis connection errors to be more verbose and readable

Resolves #38

* add labels to cuttlink services in docker-compose file 💬

* add pgadmin default email and port 🛂