2025 rebuild

update site due to current employment (#103)

* Add headings component with responsive typography system

This change introduces a rework to the Heading component with a consistent and
responsive typography system, replacing the previous size-based approach with
semantic h1-h3 variants. It also adds the Host Grotesk font family.

* Decrease hero heading size on mobile

* update homepage header and employment status

* - update about me and now posts.
- updated AllItemsList.astro to show updatedDate if defined, rather than pubDate
- update WorkTag with new role