Use https://www.11ty.dev/docs/plugins/image/ to transform images on build time to avif, webp and jpeg.
Images are moved to `/content/images`.
`<picture>` is no longer needed, the plugin does this automatically.
Remove webp images from the source.
Resolves#152Resolves#368
Reviewed-on: https://codeberg.org/Codeberg/Documentation/pulls/488
Co-authored-by: Gusted <postmaster@gusted.xyz>
Co-committed-by: Gusted <postmaster@gusted.xyz>