Ensures author avatar is only displayed if it exists.
Uses dynamic league IDs from the `spielbetrieb` page in the navbar, which
allows changing the league links in the backend.
Added tag filtering functionality to the blog and news sections, allowing users to filter posts by categories. Enhanced layout with improved tag display, author details, and responsive styling. Integrated the latest news preview into the homepage template. Adjusted visibility logic for navigation arrows in event carousel and refined related PHP snippets for better clarity and reusability.
Introduced a new blog section with a dedicated blueprint (`blog.yml`) and PHP template (`blog.php`). Added initial content, including hero text, button, and link for improved navigation and communication. Structured layout supports dynamic blog post rendering with author details and summaries.
tfeigel