Potentially make erddap public proof

[JessyBarrette]

There's a few steps that needs to be implemented for this:

• [x] Identify all the different information that would need to be hidden
  • [x] setup.xml
  • [x] ?
• [x] Rely on .env variables to declare the different variables
• [x] Integrate those variables through docker-compose.
• [x] Review if we cleanup everything
• [x] Clean up git history with https://github.com/trufflesecurity/trufflehog or https://github.com/rtyley/bfg-repo-cleaner
• [x] Confirm it's all clean
• [x] make public
• [x] done