Astral 0.8.0

Breaking changes

• Layouts are .astral components, called as <Layouts.site> for layouts/site.astral. A layout renders the page with {render_slot(@inner_block)} instead of @content, and receives the page's assigns as attributes, including a new @title from frontmatter. EEx .html layouts are no longer supported; Astral reports the first one it finds. Convert <%= @x %> to {@x}, attr="<%= @x %>" to attr={@x}, <%= @content %> to {render_slot(@inner_block)}, and rename the file to .astral. HEEx escapes interpolated values, which EEx layouts did not.
• .astral pages no longer get the site default or collection layout. They wrap themselves, as in <Layouts.default {assigns}>...</Layouts.default>, so a title or other value assigned in the setup block reaches the layout. Markdown and HTML pages still use their frontmatter, collection or default layout.
• Layout names drop the extension: layout: post and default "default" instead of post.html and default.html. The default layout name is now "default". A trailing .astral is still accepted.
• Components in subdirectories of components/ are modules called with HEEx's remote syntax: components/article/figure.astral is <Article.figure> instead of <.article_figure>. Files at the top of components/ are still <.name>. A directory whose module name matches an existing module, a components/layouts/ directory, or a setup-block alias with the same name as a component directory is now an error.
• Astral.Site no longer has a layouts field.

Changed

• Components compile once per build instead of once into every page module, which makes builds of sites with many pages and components faster.