cleanup text response code

src/download.rs

@@ -141,8 +141,9 @@ async fn build_text_response(path: &Path) -> Result<HttpResponse, Error> {
     } else {
         TEXT_VIEW_HTML.replace("{text}", &encoded)
     };
-    let response = HttpResponse::Ok().content_type("text/html").body(html);
-    Ok(response)
+    Ok(HttpResponse::Ok()
+        .content_type(TEXT_HTML.to_string())
+        .body(html))
 }
 
 fn build_file_response(