refactor(serverHandler/page.go): extract duplicated logic

Author: marjune163

src/serverHandler/page.go

@@ -73,13 +73,12 @@ func (h *aliasHandler) page(w http.ResponseWriter, r *http.Request, data *respon
 
 	updateTranslation(r, data)
 
+	w.WriteHeader(data.Status)
+
 	if !NeedResponseBody(r.Method) {
-		w.WriteHeader(data.Status)
 		return
 	}
 
-	w.WriteHeader(data.Status)
-
 	updateSubItemsHtml(data)
 	err := h.theme.RenderPage(w, data)
 	h.logError(err)