feat: add wordpress config for http images (#6790)

* wordpress: add cdn for images

* wordpress: use envars to define cdn url

* wordpress: fix english doc

* wordpress: update route

* wordpress: update docs

Co-authored-by: duhd1993 <duhd1993@gmail.com>

lib/config.js

@@ -188,6 +188,9 @@ const calculateValue = () => {
         scboy: {
             token: envs.SCBOY_BBS_TOKEN,
         },
+        wordpress: {
+            cdnUrl: envs.WORDPRESS_CDN,
+        },
     };
 };
 calculateValue();