Use Ructe (#327)

All the template are now compiled at compile-time with the `ructe` crate.

I preferred to use it instead of askama because it allows more complex Rust expressions, where askama only supports a small subset of expressions and doesn't allow them everywhere (for instance, `{{ macro!() | filter }}` would result in a parsing error).

The diff is quite huge, but there is normally no changes in functionality.

Fixes #161 and unblocks #110 and #273

templates/partials/post_card.rs.html

@@ -0,0 +1,29 @@
+@use template_utils::*;
+@use plume_models::posts::Post;
+
+@(ctx: BaseContext, article: Post)
+
+<div class="card">
+    @if article.cover_id.is_some() {
+        <div class="cover" style="background-image: url('@Html(article.cover_url(ctx.0).unwrap_or_default())')"></div>
+    }
+    <h3><a href="@article.url(ctx.0)">@article.title</a></h3>
+    <main>
+        <p>@article.subtitle</p>
+    </main>
+    <p class="author">
+        @Html(i18n!(ctx.1, "By {0}"; format!(
+            "<a href=\"/@/{}/\">{}</a>",
+            escape(&article.get_authors(ctx.0)[0].get_fqn(ctx.0)),
+            escape(&article.get_authors(ctx.0)[0].name(ctx.0))
+        )))
+        @if article.published {
+        ⋅ @article.creation_date.format("%B %e, %Y")
+        }
+        ⋅ <a href="/~/@article.get_blog(ctx.0).get_fqn(ctx.0)/">@article.get_blog(ctx.0).title</a>
+        @if !article.published {
+        ⋅ @i18n!(ctx.1, "Draft")
+        }
+    </p>
+</div>
+