Add hx-boosted support to Layout

It will now skip rendering the layout if the request is coming from an
hx-boosted link or form and only update the head title with a
hx-swap-oob.

src/handlers/feeds.rs

@@ -1,29 +1,38 @@
 use axum::extract::State;
 use axum::response::Response;
+use axum::TypedHeader;
 use maud::html;
 use sqlx::PgPool;
 
 use crate::error::Result;
+use crate::htmx::HXBoosted;
 use crate::models::feed::{Feed, GetFeedsOptions};
 use crate::partials::add_feed_form::add_feed_form;
 use crate::partials::feed_list::feed_list;
 use crate::partials::layout::Layout;
 use crate::partials::opml_import_form::opml_import_form;
 
-pub async fn get(State(pool): State<PgPool>, layout: Layout) -> Result<Response> {
+pub async fn get(
+    State(pool): State<PgPool>,
+    hx_boosted: Option<TypedHeader<HXBoosted>>,
+    layout: Layout,
+) -> Result<Response> {
     let options = GetFeedsOptions::default();
     let feeds = Feed::get_all(&pool, &options).await?;
-    Ok(layout.with_subtitle("feeds").render(html! {
-        header { h2 { "Feeds" } }
-        div class="feeds" {
-            ul id="feeds" {
-                (feed_list(feeds, &options))
+    Ok(layout
+        .with_subtitle("feeds")
+        .boosted(hx_boosted)
+        .render(html! {
+            header { h2 { "Feeds" } }
+            div class="feeds" {
+                ul id="feeds" {
+                    (feed_list(feeds, &options))
+                }
+                div class="add-feed" {
+                    h3 { "Add Feed" }
+                    (add_feed_form())
+                    (opml_import_form())
+                }
             }
-            div class="add-feed" {
-                h3 { "Add Feed" }
-                (add_feed_form())
-                (opml_import_form())
-            }
-        }
-    }))
+        }))
 }