update POST /logout error messages

src/main.rs

@@ -147,13 +147,13 @@ async fn login(mut db: Connection<Db>, info: Json<LoginInfo>, cookies: &CookieJa
     }
 }
 #[post("/logout")]
-async fn logout(cookies: &CookieJar<'_>) -> &'static str {
+async fn logout(cookies: &CookieJar<'_>) -> status::Custom<&'static str> {
     match cookies.get_private("token") {
         Some(_) => {
             cookies.remove_private("token");
-            "Logged out."
+            status::Custom(Status::Ok, "Logged out.")
         }
-        None => "Not logged in.",
+        None => status::Custom(Status::Unauthorized, "Not logged in."),
     }
 }