added anyhow, improve hamburger menu, improve dw articles

src/json_serialization/feed_info.rs

@@ -18,7 +18,12 @@ impl Responder for FeedInfoList {
     type Body = String;
 
     fn respond_to(self, _req: &actix_web::HttpRequest) -> actix_web::HttpResponse<Self::Body> {
-        let body = serde_json::to_string(&self).unwrap();
-        HttpResponse::with_body(StatusCode::OK, body)
+        match serde_json::to_string(&self) {
+            Ok(body) => HttpResponse::with_body(StatusCode::OK, body),
+            Err(err) => {
+                log::error!("Failed to serialize response: {}", err);
+                HttpResponse::with_body(StatusCode::INTERNAL_SERVER_ERROR, String::new())
+            }
+        }
     }
 }