feat(*): add image grids for album and associated media displays

api/oembed.php

@@ -18,7 +18,7 @@ class OembedHandler extends BaseHandler
     if (!$requestUrl || $relativePath === '/') $this->sendResponse($this->buildResponse(
         $globals['site_name'],
         $globals['url'],
-        $globals['avatar'],
+        $globals['metadata']['open_graph_image'],
         $globals
       ));
 
@@ -66,7 +66,7 @@ class OembedHandler extends BaseHandler
       $this->sendResponse($this->buildResponse(
         $title,
         $relativePath,
-        $globals['avatar'],
+        $globals['metadata']['open_graph_image'],
         $globals
       ));
     }