fix the docusaurus image issue

Author: Adez017

docusaurus.config.ts

@@ -79,7 +79,7 @@ const config: Config = {
   ],
 
   themeConfig: {
-    image: "img/docusaurus-social-card.jpg",
+    image: "/img/og-image.png",
     colorMode: {
       defaultMode: "light",
       disableSwitch: false,