Contribution: Add ability to change the date format

[aborg-dev]

I would like to use a different date format for posts, e.g. "January 9, 2025" instead of "2025-01-09".

In my understanding, the date format is currently hardcoded here:

zola-theme-terminimal/templates/macros/post.html

Line 29 in 7f630a4

{{ page.date | date(format="%Y-%m-%d") }}

I imagine adding this would be as simple as:

• Introduce a new date_format value in the config
• Use that value in the template above

Would that be a reasonable plan and a welcome change? If so, I'll be happy to implement it.