Restore working state by refactoring Makefile and Nginx config

[bullet-ant]

• Fix improper indentations in Makefile
• Fix Dockerfile to adhere to standards
• Remove ssl on from Nginx configurations

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[lgarron]

Do you have more context on why these changes are necessary/worthwhile?

Also, we have to use an old version of nginx for old SSL, do you foresee any issues with that?

[bullet-ant]

Thank you for reviewing the PR, @lgarron

Regarding the necessity of these changes:

1. Makefile Indentation: I had to correct indentation issues in the Makefile, which were causing build errors.
2. Dockerfile Adjustments: I removed the RUN gem update --system command because it caused an error during the Docker build process. The error was due to RubyGems being installed through APT, which does not support upgrading via RubyGems itself.
3. Nginx Configuration: The removal of the ssl on directive is necessary because it’s deprecated in the Nginx version included with Ubuntu 24.04. The newer Nginx version uses listen ... ssl instead. Since we’re not specifying a version in the Dockerfile, apt installs the latest version available in the Ubuntu repositories, which requires this change.

Regarding your concern about using an older version of Nginx for old SSL:

If we need to maintain compatibility with legacy SSL protocols, we could consider pinning Nginx to an older version that supports ssl on. However, doing so may introduce security risks, as older versions might not have the latest security patches. I’d be happy to explore this further if you think it’s necessary.

Thanks again for your guidance, and I look forward to your feedback!