New structure, better details, better grids and a step forward webmentions

The website now employs the composer kit, necessitating structural modifications. It runs on PHP 8.2 and a relatively stable Kirby version - specifically, v5 rc2.
A minor animation has been added to the details tag, enhancing its appearance when opened.
The grid system defaults to auto-fill instead of auto-fit. Now, the polaroids no longer take up 100% of the container’s width if there are fewer than four per line.
Komments plugin has been reinstalled. I’m working on displaying the webmentions. However, I still have a few things to understand before it works properly. 😅