Implemented a new PGN4Web block with a PHP snippet for game replay functionality. Updated blueprints with PGN-specific fields, modified layout and blockpage templates, and included necessary JavaScript and assets for interactive chess game rendering. Enhanced memorial page with replayable game content.
Introduced a new FEN block feature, including a PHP snippet to render FEN diagrams, a new CSS file for chessboard styling, font integration, and blueprint updates. Adjusted asset paths and file references for consistency.
Replaces repetitive header, navbar, and footer code in templates with a centralized `layout` snippet for better maintainability. Cleans up and simplifies various template snippets.
tfeigel