[前端] 登出 remove cookie JWT

Frontend/index.html

@@ -1082,6 +1082,7 @@ License: You must have a valid license purchased only from wrapbootstrap.com (li
 
         onEvent("click", "#logout", function () {
             localStorage.removeItem("JWT-Authorization");
+            cookies.remove("JWT-Authorization");
           location.href = "/logout";
         });