Blog for Waku and Astro

@fumapress/blog is the blog of a Fumapress site, replacing fumapress/plugins/blog. blogPlugin({ source: "blog" }) renders the posts of one or more source keys.
Import its styles with @import "@fumapress/blog/css/preset.css"; and its frontmatter schema blogPageSchema from @fumapress/blog/schema.
ui.renderPage receives typed props for blog.index, blog.tags, blog.tag and the post pages. Compose them with BlogIndexView, BlogTagsView, BlogTagView and BlogPostView.
Tags, authors and cover images come from the getTags, getAuthors and getImage options, falling back to the frontmatter.
getBlogPosts(ctx, { lang }) lists the posts on custom pages, like a landing page. Without i18n, getBlogPosts(ctx).
The index and tag pages render on demand when their content source is dynamic.