Rename docker images

[esheehan-gsl]

The names of our docker images no longer accurately reflect the current application architecture.

api

The Flask application that serves the entire application, not just the JSON data

ui

An nginx webserver that serves static assets and reverse proxies requests to the Flask app

data

The Lambda function for ETL of diagnostic data

We should probably rename api to app and ui to something like webserver or static.

[esheehan-gsl]

@ian-noaa I was trying to get this one done myself (#433) but I’m having a devil of a time getting kubernetes to run locally so that I can test that my changes actually worked. So I think maybe I’d better hand this one over to you for whenever you have time to get to it.

It’s just some minor maintenance, so there’s no rush. And if you want to just delete the branch I created and start over you’re of course welcome to do so.