Minify generated html files by html_formatter

[pjrobertson]

The html_formattery previously used the minify_html package to minify HTML and offer savings of about ~25% on the generated files (15KB vs. 20KB).

However, the minify_html package is incompatible with python3.13 (at the time of writing) and adds another dependency to the project. Alternative approaches for saving space should be considered. They include:

1. Using some built-in method to minify and save space (if one exists)
2. Minifying the template during build. I.e. create a template.min.html file during the build proccess, which is then stored in the repo and used by html_formatter.py by default
3. Other ideas...

Note: minify_html was removed in this commit: 080f474