Docker image management updates + run_first script improvements

[clpetersonucf]

This spiral'd out after first noticing that the images in the base compose file don't actually exist, causing run_first to always build from source instead of pulling pre-built images for app and webserver.

Updates include:

• Interactive prompt at the init of run_first to ask whether you want to pull precompiled images or build them from source
• Removed some redundant steps from the run_first script
• Renamed the app, webserver, and fakes3 images in the base compose file to their representative tags in the github package registry. They will default to the latest app-dev, webserver-dev, and fake-s3-dev accordingly.
• Added app-stable and webserver-stable tags to published images for release builds.
• Finally got around to updating the base mysql image from 5.7 to 8.0.32.

How to test

You'll need to kill your existing development instance of Materia, if present. Sorry about that.

If you had an existing Materia instance, do this first:

$ docker compose down
$ docker rmi -f $(docker images -q)

Then, in the docker/ directory of Materia:

$ ./run_first.sh

Choose option 1 for precompiled images. Choose option 2 to build the images locally.

[FrenjaminBanklin]

The modifications to the first run shell script work in both scenarios, and initial setup is way faster now when opting to use the existing images.