add fn header

src/main.rs

@@ -25,10 +25,7 @@ async fn index() -> impl IntoResponse {
     // Render the template with the given context
     let rendered = tera.render("index.html.tera", &context).unwrap();
 
-    (
-        [(header::CONTENT_TYPE, "text/html; charset=utf-8")],
-        rendered,
-    )
+    header(rendered)
 }
 
 async fn search(Query(params): Query<HashMap<String, String>>) -> impl IntoResponse {
@@ -39,8 +36,12 @@ async fn search(Query(params): Query<HashMap<String, String>>) -> impl IntoRespo
 
     let rendered = tera.render("search.html.tera", &context).unwrap();
 
+    header(rendered)
+}
+
+fn header(rendered: impl ToString) -> impl IntoResponse {
     (
         [(header::CONTENT_TYPE, "text/html; charset=utf-8")],
-        rendered,
+        rendered.to_string(),
     )
 }