This commit overhauls the display page by replacing the luminance-based keying with a more robust chroma key (green
screen) algorithm for cleaner video cutouts.
A new visual theme has been implemented, featuring:
- Custom fonts for titles and poems.
- A main title, subtitle, and vertical poems styled with Tailwind CSS.
- Reorganization of assets into dedicated `assets` and `fonts` directories.
- Updated video source to a green screen version and adjusted canvas parameters accordingly.
